Caiet de Sarcini Kulak Engleza

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    SPECIFICATIONSRESISTANCE WORKS

    RESIDENTIAL COMPLEX TRIVIUM TOWERS 2S+P+14E+15EAND 16E WITHDRAWN -St! A"##$ F%&%'%#(%")* N! 1 - ,',#t%

    ENEFICIAR.: S!C! KULAK CONSTRUCTION S!R!L!

    - S/#'%0%'$t%)( 0) ##',t%)( )0 )3 )0 ')('#t# $( #%(0)'#

    ')('#t#

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    - S/#'%0%'$t%)( 0) t# )3 )0 #78$(37#(t

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    SPECIFICATION

    FOR

    CONCRETE AND REINFORCED CONCRETE ELEMENTS

    Contents

    Generalities

    Standards and normative reference

    Materials and equipment used. Checking quality. Shipping, handling, storage

    Execution echnology

    Checking the quality of !orks. "ermissi#le deviations

    Measurements and settlements.

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    1. GENERALITIES

    his specification includes the technical specifications for the executionstructure of reinforced concrete for the RESIDENTIAL COMPLEX

    9TRIVIUM TOWERS 2S+P+14E+15E AND16 WITHDRAWN -St! A"##$F%&%'%#(%")* N! 1 : ,',#t%

    $uring execution !ill #e used the follo!ing concrete designed in accordance !iththe details of %E&'()** and the ta#le #elo!:

    REQUIREMENT FOR PILES FOUNDATIONMATT

    WALLS SLABS

    Concrete class C202! C2!"0 C2!"0 C2!"0 C2!"0 C2!"0

    Ter#s o$ %#&er#ea'%l%t( )

    P*10 P*

    10

    onl( &er%#etral +alls o$ t,e'ase#ent

    ) ) )

    Ce#ent t(&e

    CEM

    IIA)S

    "2-!R

    CEM IIA)S

    "2-!

    CEM IIA)S "2-!R CEM

    IIA)S

    "2-!R

    CEM IIA)S

    "2-!R

    CEM

    IIA)S

    "2-!R

    CE

    "2-

    Ma. rat%o/ AC 0-! 0-! 0-! 0-! 0-! 0-!

    Ma.%## s%e o$

    a33re3ates

    "1 4205 "14205 "14205 "14205 164205 164205

    A7%t%8esPlast%

    c%er

    Plast%c%er Plast%c%er Plast%c%er Plast%c%

    er

    Cons%stenc(

    4Settl%n3)c# 5

    T

    41!"5T"T

    4109) 25

    T"T

    4109) 25

    T"T

    4109) 25

    T"T

    4109) 25

    T"

    410

    + ori-ontal oint !ithin the foundation matt and perimetral !alls of the #asement!ill #e !aterproof #y applying a cordon expand /0E1S2" ) 13 4Cordon

    expand to seal the oints so5.

    ++ 0fter that on the perimetral !alls of the #asement may apply 36"E3 treatment.

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    2. STANDARDS AND NORMATIVE REFERENCE

    ' %E &'( ) ** 7uide for the execution of !orks in concrete and reinforcedconcrete.

    ( C 8' ) 9 %ormative for composition, performance and use of casings sliders

    ; C '( )

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    3. MATERIALS AND E;UIPMENT USED! ;UALIT. CHECK! DELIVER.* HANDLINmoderate > severe5 are sho!n in a#le =.8. minimum requirements to ensure dura#ility forconcrete, and in a#le =.=. minimum dosage of cement to ensure dura#ility of concrete. Aor#uildings exposed to severe enviroments ratio !ater>cement40>C5 !ill #e smaller.

    o produce a dura#le concrete that !ill !ithstand exposure to environmental conditions andto protect the reinforcement against corrosion follo!ing requirements must #e met:a5 he selection of concrete materials so that they do not contain impurities that can damagedura#ility of concrete or produce corrosion of the re#ar.#5 Choo-e the concrete composition so that concrete:c5 to meet all performance criteria specified for reinforced concreteB

    d5 can #e poured and compacted to form a compact structure to protect the re#are5 to avoid actions that damages internal concrete 4eg alkali)aggregate reaction5Bf5 to resist external actions such as the environment.c5 Mixing, transport, putting in !ork and compaction of fresh concrete to make so that materialsof concrete to #e uniformly distri#uted in the mixture, not to segregate and concrete to make acompact structure.d5 0ppropriate treatment of the concrete to o#tain the desired properties of concrete and properprotection of the re#ar.$ura#ility requirements necessary re#ar protect against corrosion and preserve thecharacteristics of concrete to physicochemical actions during the period of service are designedprimarily related to the permea#ility of concrete.

    n %E &'()** reference is made to esta#lish the degree of impermea#ility of concretenecessary depending on the class of exposure. S0S ;(()9 sets the levels of performanceof concrete depending on their degree of impermea#ility:

    @imited penetration depth of !ater 4mm5'&& mm (&& mm

    mpermea#ility degree /ater pressure 4#ari5"8

    '& "8(& 8

    "9'&

    "9(&

    9"'(

    '& "'((& '(

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    1esistance to frost)tha! concrete characteri-ed #y a degree of frostcleftness according to thenum#er of cycles of frost)tha! should meet performance levels specified in S0S ;(()9:

    Arostcleftness degree ofconcrete

    the frost)tha! cycles

    7 =& =&7 '&& '&&7 '=& '=&

    BASIC REQUIREMENTS FOR COMPOSITION OF CONCRETE. LEVEL FORPERFORMANCE OF CONCRETEConcrete can #e achieved on the #asis of compositions determined in t!o !ays:'. mix concrete designed in the station #y producer through a certified la#oratoryB(. prescri#ed mix concrete 4through the specification and > or user5 through a la#oratory.Mixing concrete design:Choosing components and determining the composition of concrete is designed #y the producer

    #ased on preliminary defined mixtures and verified #y a la#oratory. he composition of theconcrete should #e designed taking into consideration the provisions of this specification andthe %E Code &'()**.f the concrete mixture designed to #e specified #ased on the composition of concrete:;. class resistance 4conf to the proect5B8. Maximum si-e of granular aggregates 4conf to this specification5B=. consistence of fresh concrete 4conf to this specification5. the 0 > C max 4conf to this specification5m; (=& kg>m;

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    ) he requirements imposed #y the execution of special technology and type of additiveis not required #y the proectB

    ) Execution of !orks in other conditions than normal 4during !arm or cold5B) "reparation of concrete on site, and #y design is not esta#lished the type of additiveB

    ) 2#taining resistances control phases in short terms.c5 he supplier of concrete to achieve the requirements of resistance, improving uniformity ofconcrete and if necessary, increase the duration of transport.Consistency of concrete put in place to operate is determined #y the Aield engineer, accordingto ta#le .8.;. %E of &'()**, so that concrete can #e transported and put in !ork conditions.

    LEVELS FOR PERFORMANCE OF CONCRETEAor fresh concrete: Consistence, as a measure of malea#ility that can #e determined according to %E. pct.;&& mm 4orcu#es !ith a side of '=& mm5 in age (9 days, under !hose value may #e statistically situate nomore than =D of the results.

    class C8>= C9>'&

    C'(>'=

    C'>(&

    C(&>(=

    C(=>;&

    C;&>;8=

    C8&>=&

    C8=>==

    C=&>&

    fck cil 8 9 '( ' (& (= ;& ;= 8& 8= =&

    fck cu# = '& '= (& (= ;& ;< 8= =& == &

    Concrete class definition according to code %E. &'()** regards preservation of tu#esaccording to S0S '(*'.

    MATERIALS USED IN PREPARING CONCRETECement

    o achieve concrete class to the proect is recommended to use range of "ortland cement,Class > >8(.= or ;(.=, !ithout additives, !ith resistance initially normal, according to technicalconditions of S1;99 ) *= 4equivalent to "a;= or "a8& former S0S '=&& ))

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    he range of "ortland cement >;(.= current !orks of reinforced concrete in normal operatingconditions, !hich do not impose specific requirements, according to ta#les .(.'. of %E &'()**.Special concrete in contact !ith ground!ater, identified !ith car#on aggression !ill #e executedin accordance !ith S0S ((;*>9;.

    D#"%=#> $( t$(/)tCement is delivered in #ulk or packed in paper #ags, accompanied #y a certificate of

    quality. n case the cement dispatched #y the supplier is taken over a #ase of supply, it iso#liged to deliver the user to issue a certificate of guarantee !hich states:) ype of cement and factory productionB) $ate of arrival in the !arehouseB) he certificate of quality issued #y the manufacturerB) he use notice certified #y la#oratoryB

    )ensure that the conditions of storage.

    Cement shipped in #ulk are transported in cistern !agons, tankers, containers or closed!agons, dedicated to this product.ransportation of cement packed in #ags is made #y closed !agons or covered trucks.

    StorageStorage of cement !ill #e made only after receiving the quantity and quality, including throughthe esta#lishment of existence or certificate of quality guarantee and verification of free storagecapacity in silos for cement type or in specially equipped rooms. /henever possi#le, storagecements directly from the producer, !ill #e made after verification from the physical la#oratory.Cement in #ulk storage !ill #e silo)type cells, !hich !erenHt previously stored other materials.

    Storage of cement packed in #ags must #e done in closed rooms. n case of !ooden!arehouses, they !ill have eaves of max. =& cm !idth, and the floor !ill #e #uilt at least ;& cma#ove the ground. n case the storage room has concrete floor, the #ags !ill #e placed on#oards !ith interspaces to ensure air circulation inside the stack. #ags !ill #e seated in thestacks, leaving the free distance of =& cm from the exterior !alls around them and keeps asufficient space for circulation."iles shall have the date of arrival of cement marked , grade and date of manufacture. Cement!ill #e used in the manufacturing order data. $uration of storage !ill not exceed & days fromthe date of dispatch #y the producer of cements !ith additives and ;& days in the case !ithoutadded cements. Cement remained in storage over the period of !arranty or improper conduct!ill not #e used in concrete !orks and concrete until after checking the state of conservationand mechanical resistances.

    0t intermediate deposits and reserve deposits of the concrete station !ill mark concretesilos for each purely assortment of cement to #e used. Marking silos !ill #e a form of cementstandard sym#ol !ith letters and num#ers at least =& cm high.

    /hen necessary to change the range of cement stored in silos are fully emptied throughpneumatic installation and !ill mark the ne! selection to #e stored. he entire life of silos !illkeep lots of cement stored in each silo, #y recording the daily arrivals and deliveries/

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    Qua!t" #o$tro o% #e&e$t

    Checking the quality of cement !ill #e:) he supply, including checking the certificate of guarantee issued #y the producer or thedelivery point under 8.'.;. of %E &'()**.) efore use, #y a certified la#oratory.Iuality control of cement is given in paragraph 'm;, is

    #eing used aggregates !ith normal density 4'(&')(&&& kg>m;5, derived from crushing naturaland > or crushing rocks. echnical conditions !hich must satisfy the aggregates are sho!n inS0S '< >

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    ADDITIVES0dditives are chemicals that are added in concrete in amounts less than or equal to =D from

    the dry mass of cement.

    Fsing additives in the preparation of concrete aims to:) mproving malea#ility, in elements !ith thick re#ars, thin sections or pumped concreteB) 2#tain concrete upper classB) 1egulating the process of strengthening, delay or acceleration, depending on technologicalrequirementsB) ncreasing resistance, dura#ility and improving uniformity of concrete.) mproving !ater proofness.Common types of additives and conditions of use are specified in 0nnex .;. of %E &'()**.Fsing other types of additives or the simultaneous use of ( types of additives in the event thatcompati#ility is not kno!n and their side effects on concrete, is admitted only after conductingpreliminary tests and the opinion of a specialist institute.

    "rimary and secondary effects of additives on properties of concrete are presented in a#le'.;.'. of %E &'()**. nfluence of additives on the current use of properties of concrete ispresented in a#le '.;.(. 0nnex .;. ) %E &'()**.

    ADMI)TURES 0dmixtures are fine inorganic materials that can #e added in concrete in amounts exceeding=D from the dry mass of cement, in order to improve its characteristics 4malea#ility degree ofimpermea#ility, resistance to aggressive chemical agents5, or to achieve special properties.

    here are t!o types of additives:) nert, partial replacement of part of fine aggregate, !hich is reduced #y a#out '&D the

    amount of sand of &); mm aggregates. use of added inert leads to improvement of concrete

    compactnessB) 0ctive case in !hich the matter of the addition of hydraulic properties. 0ctive additives are

    granulated furnace slag, ash, silica dust, etc..n case of additives !ith hydraulic properties, to calculate the !ater > cement 40 > C5 it considersthe addition of concrete as part #inder.Fsing additives is in accordance !ith specific regulations in force, agreements or technical#asis of studies dra!n up #y speciali-ed la#oratories. 0dditions should not contain su#stancesthat inflente-e negative properties of concrete or cause corrosion of re#ars.

    CONCRETE PREPARATION

    Staff involved in the production and control of concrete !ill have the necessary kno!ledge and!ill #e certified for these types of activity. Aor operations of dosing and mixing of all concreteinstallations and equipment should ensure the proper functioning of their requirements for thesetypes of operations, as specified in %E. &'()**.f the concrete is delivered from stations, field)engineer and investor may have the right toverify the proper functioning of the equipment and installations and also to check if deliverytime meet the technical requirements and delivery receipt if it contains all the necessaryinformation . Checks should not #e used as station concrete proof of the quality control ofconcrete and graduate station concrete preparation of a concrete delivery responsi#ility

    requirements, nor to exclude a further reection of the concrete #y the client.o ensure proper quality level of expectations, field)engineers of construction !orks or theinvestor or his representatives can !ork !ith a la#oratory other than the concrete station for thiskind of !ork, !hich is equipped !ith all facilities and equipment necessary to make specific

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    determinations and quality control of concrete. f field engineer appeals to a la#oratoryindependent foreign enterprises, should #e specified in the contract all determinationsnecessary to assure quality control of concrete, depending on the specific !ork.

    Re!$%or#e&e$tTechnical TermsSteels for concrete must conform to Jtechnical specification of requirements and performancecriteria for steels used in concrete structures and to meet the technical conditions stipulated inS0S 8;9>')9* 4for flat steel profile 2 ;()*' 4for steel profiled "C =(, "C &5in the S0S 8;9 > ; > 8)*9 4for nets and pulled !ires !elded to reinforced concrete5, and S0S'&'&< > & ) *&.ypes of fittings are currently used:) 2 ;< ) concrete steel round, flat, for fittings and construction fittings resistance !hose si-eresulting from compliance !ith the minimum reinforcementB

    ) "C =( ) concrete steel !ith higher resistance, !ith a regular profile, fittings for the resistanceof structural elements of reinforced concrete located in the potential plastic area)S)=&&S ) concrete steel !ith higher resistance, !ith a regular profile, fittings for theresistance of structural elements of reinforced concrete located in areas of elastic #ehaviorn case of use of steels from import is mandatory existing certificate of quality issued #y a unitof imported steel, or ensure that their disposal. he certificate of quality is appropriate tomention the type of steel S0S 8;9>')( > 9*)*', equivalence is made #y taking into account allthe parameters of quality. n case there is dou#t a#out ho! to equivalence conducted, themanufacturer can only use steel from the results of la#oratory tests and the !ritten consent ofthe designer.

    De!*er" a$+ &ar,!$g$elivery of steel concrete !ill #e made under the current provisions and accompanied #y a

    certificate of quality. n cases !here delivery is made #y a supply #ase itHs required to sendcertificates of guarantee proper lots that delivers. he documents accompanying the delivery ofsteel from the concrete producer must contain the follo!ing information:) %ame and type of steel, the standard usedB) 0ll information for the identification of #atchesB) %et !eightB) he determinants of performance criteria.Each link or curl #ars or !elded nets !ill have a la#el, right a#out that !ill contain:) Mark the productB) ype of re#arB) atch num#er and the hoop or connectionB) %et !eightB) he CC.Steel supplied #y intermediaries !ill #e accompanied #y a certificate of quality !hich !ill containall of the documents issued #y the manufacturer of steel concrete.

    Tra$'-ort a$+ 'torage1einforcement #ars, !elded nets and reinforcement of prefa#ricated carcasses !ill #e

    transported and stored so that !ill not suffer damage or the presence of su#stances that can

    affect the re#ar and > or concrete or concrete)reinforcement adhesion. Steels for fittings to #estored separately on the types and diameters, in spaces designed and properly equipped so asto ensure:) he avoidance of conditions favora#le to corrosion of steelB

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    ) 0void staining !ith earth or other materialB) "roviding opportunities for easy identification of each type and diameter.

    Qua!t" Co$tro

    1e#ars !ill #e checked under Jtechnical specification of requirements and performance criteriafor steels used in construction. Aor each type and quantity supplied, the operation control iscarried out under the provisions of Chapter '< 4section '

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    degradation 4!etting, dirt, rotting, rusty, etc.5..t is for#idden to directly deposit casings on the ground or to storage other materials on thepiles of panel casings.efore #eginning operation of mounting casings, !ill clean and prepare surfaces that !ill

    come in contact !ith concrete that is going to #e poured and it !ill check and correct theposition of re#ars.

    Mounting casings !ill include the follo!ing steps:) dra!ing position casingsB) provisional assem#ling and supporting the panelsB

    ) linking and supporting the final casings.

    n cases in !hich the supporting casings supports on the ground it !ill ensure allocationrequests, taking into account the degree of compaction and soaking opportunities, so as toavoid producing settling. n cases !here the land is fro-en or exposed to frost support claims

    !ill #e made so as to avoid moving them depending on the temperature.

    S/APING REINFORCEMENT

    Shaping #ars, manufacturing and installation of reinforcement carcasses !ill #e donein strict accordance !ith the proect and compliance !ith composition for reinforced concreteelements stipulated in S0S '&'&< > & ) *&, paragraph on the follo!ing:) 1einforced anchoring longitudinal and cross under section .(.B) "rovision of additional poles, according to section .8.B) 0dditional provisions for #eams under section .=.B) "rovision of additional sla#s, according to section .."rior to move to shaping reinforced, the field)engineer !ill revie! the proect, taking intoaccount the practical possi#ilities of fitting and fixing of #ars, and technological aspects ofcompaction and concreting. f it is deemed necessary !ill #e required to revie! the design ofreinforcement in the proect.Spinner fittings !hich must #e clean and straight. Aor this purpose !ill #e removed:) 0ny impurities from the #arsB) 1ust #y ru##ing !ith !ire #rush, especially in areas !here the #ars are to #e eking #y !elding.

    0fter rust removal, reducing the si-e #ar area should not exceed the diameter limit deviationsspecified in product standards.

    2.. delivered in coils or #ars #ent must #e turned #efore it can proceed !ith cutting andtrimming, !ithout damaging the profile yet. n tension !ith !inches, maximum alongation !illnot exceed ' mm > m.

    ars are cut and shaped to #e stored in packages la#eled, so as to avoid their confusionand ensure preservation of their shape and cleanliness to !hen installing. f, due to localconditions, may #e favored steel corrosion, !e recommend installation and concreteing re#ars!ithin '= days of forming.Aittings !ill #e done !ith or !ithout noses, under the proect. f smooth re#ars, !ith dimater JdJ,nose fold to '9& deg., !ith a minimum inside radius J'.(= dJ and the right end portion, usually atleast = d. f reinforced !ith regular profile, nose fold to *&deg. !ith a minimum inner radius J(dJand right end portion, typically less J

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    fold after a right angle, the #ending radius of the circle !ill #e minimal J(dJ. Stirrups #ars areclose to noses in ';=deg., !ith length of at least J'&dJ or '& cm, !here d is the diameter ofstirrup.Stirrups shaping and #ending !ill #e made !ith a slo! motion, !ithout shocks. n the #ending

    machines is not admissi#le in #ent steel #ars !ith a regular profile at high speed of the car!hen it has t!o speeds. "rohi#iting shaping reinforced at temperatures #elo!)'& C. ars !ith aregular profile !ith a diameter greater than (= mm !ill #e the hot fashion. 1ecommendations forshaping #ars, mounting and #inding are in 0nnex .'. %E. Code &'()**.

    1einforcement should #e cut, #ent, manipulated so as to avoid:) Mechanical damage 4eg. %ick, percussion5B) reaks in the !elds !elded enclosures or netsB) Contact !ith su#stances that may affect the adhesion properties or processes can causecorrosion.Specific tests or determinations !elded nets, including verification of quality !eld nodes !ill #e

    under S0S 8;9 > ; ) '*9*.

    MOUNTING REINFORCEMENT

    1einforced assem#ly can #egin only after receiving a quality casings and acceptance #ythe design of concreteing procedure of elements or parts of the structure !hose volumeexceeds '&& cm and is required to #e provided #y casting oints.Mounting re#ars !ill adopt measures to ensure the proper development of pouring and concretecompactation #y:) Creation of empty spaces #et!een fittings at the top, allo!ing free penetration of the concreteor hoses that do!nload the concrete at intervals of max. ; mB

    ) Creating spaces required penetration of shaker machine, at least (.= times the diameter andthe maximum of = times the thickness of the item, shaker machines typical diameters #eing ;9or =9 mm.n case you are not insured under the a#ove:) /ill #e assem#led or partially closing the upper reinforcement, !ill #e completed #efore thelast stage of concreteingB) /ill #e required, if necessary, revie! the provisions stipulated in the reinforcement proect.Aittings !ill #e mounted in position to the proect, is taking steps to assure its maintenanceduring pouring concrete 4distance piecs, clips, goats, etc.5.. n this respect !ill #e provided:) 0t least four distance pieces each m( of plate or !all structureB

    ) 0t least one distance piece every linear feet of column or #eam 4for K '( mm5, and at least

    t!o distance pieces every linear feet of column or#eam 4for L'( mm5

    ) 0t least one distance piece among the ranks of fittings every t!o linear feet of #eamreinforcement in the area !ith t!o or more ro!s.$istance pieces can #e made of cement mortar in the form of a prism provided !ith a !ire to #econnected #y fittings or made of plastic. t is for#idden to use as spacers Coupons steel)concrete, except distance pieces #et!een ro!s of re#ars on t!o or more lines,4 #eams5. omaintain position of re#ars in the top plate distance pieces !ill #e used in steel)concrete

    supported on lo!er re#ar or distance pieces and arranged #et!een them at the distance of onemeter 4' #uc>m(5 field and at =& cm 48 #uc>m(5 in areas in the console. f reinforced !ith adiameter greater than '8 mm is permitted overcoming distances mentioned, #ut so as to ensurepreservation of re#ar position. n such situations, the distance piece can #e replaced !ith the

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    reinforcement #ar !elded lo!er and upper respectively.Em#edded metal parts !ill #e fixed #y a solder or !ire connections !ith the reinforcement

    element, or #e fixed in casing, so as to ensure maintenance of their position during pouringconcrete.

    t is recommended that, !hen you have mechanical means of lifting and erection, reinforcementis installed in the form of carcasses preasam#late, prefera#ly #y !elded points.

    B!$+!$g re0ar'

    1einforcement #ars should #e linked together to crosses !ith #lack !ire connection4S0S 99* ) 9&5 or #y electric !elding points. /hen the #inding is done #y !ire, !ill use t!othreads of !ire ' ) '.= mm diameter.%et!orks of fittings in plates and diaphragms !ill necessarily linked in t!o marginal ro!s ofcrosses on the entire contour. he remaining crossings of the net!orks !ill #e linked in chess.%et!ork of curved #oards !ill connect all points of crossing.

    n #eams and columns !ill #e linked crosses all #ars !ith the corners of stirrups or clip noses.Crosses of the remaining #ars !ith straight parts of stirrups may #e related only in chess.nclined #ars !ill #e linked in a compulsory,!ith the first stirrup they meet.

    Co$'tru#t!o$ Rue'

    Constructive provisions to #e complied !ith reinforcing elements in reinforced concrete aregiven in S0S '&'&&)*&, cap. and

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    the first ro!B) he #eams, columns, #ul#s of structural !alls : (= mm) he foundation: ;= mm on the face that comes in contact !ith concrete equali-ation, or facesin the cast form 4eg. Aoundation #eams5 .) III category.

    : 8= mm on the face that comes in direct contact !ith the ground. 4Category?5.n case of concrete class LC'>(& values a#ove increases #y = mm to the exposure categories, , ?.Minimum thickness of cover layer of longitudinal re#ars should respect the past values, #ut to#e at least equal to '.(3d longitudinal #ar reinforcement. hickness of the layer of reinforcedlongitudinal coverage is limited to =& mm. hick layer of reinforced longitudinal coverage mustusually #e a multiple of = mm, and is o#tained #y rounding up more or less than ( mm in minusvalues determined under the conditions specified a#ove.

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    Re-a#e&e$t re!$%or#e+ u$+er te -roe#t

    n case you do not have the assortment of diameters and specified in the proectcan proceed to replace them !ith the opinion of the designer. 1eplacement reinforced

    under the proect !ill oin the execution plans that are su#mitted to the technical #uilding#ook and !ill #e covered #y the structural engineer !ho has su#ordinated paper.

    B!$+!$g 0" e+!$g o% 0ar'

    nnadirile #y !elding the #ars !ill fulfill the terms of S0S S0S 8;9>')9& and8;9>()9& on the minimum flo! limit of 1c 41&, (5 and resistance to #reakageB limit flo! of!elded #inding itHs considered the load that a test tu#e presents deformation remainingless than or equal to &.(D 4a#le '' determinata conf, pct.( ) from C (9>9;5.

    /elding can #e done only for temperatures greater than & C. Aor temperatures

    #et!een )'= ... &C are allo!ed !elded #inding only in protected spaces and !ith apreheating the upper limit 4;&&C5. 0lso, in this case, it !ill !ork only on a specific person

    responsi#le for !elding. "reheating temperature !ill #e determined !ith thermoindicatorpencils or !ith the indications in a#le .. ) C(9)9;. "reheating the #ars !ill run !ith theflame oxiacetilenic 4conf S0S 8';

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    to #e determined #y a speciali-ed institution or a la#oratory authori-ed #y adoption ofappropriate technologies for preparation, transport, putting in !ork and treatment and use ofconcrete delaying additives etc..

    PUTTING CONCRETE IN (OR4

    Pre-arat!o$ %or te #o$#rete5' -our!$g

    1unning concrete !orks can start only if the follo!ing conditions are met:-$ra!ing concreteing procedure for the o#ect in question #y field)engineer and acceptancethis #y the investor. he rules include detailed execution and quality control, taking into accountthe requirements imposed #y the proect, equipment and possi#ilities for organi-ing theexecution, and the provisions of the %E. &'()**.-n case of concrete prepared on site: preparatory measures are performed, are checked and

    supplied the necessary materials 4cement, aggregates, additives, additives, fittings, em#eddedparts, casings, etc..5 0nd are a#le to operate equipment and facilities needed in accordance!ith the procedure execution.-0re provided opportunities to !ashing machines of transport and release concrete in !ork o.- 0re esta#lished and trained formations !ork in terms of technology, execution, and onmeasures of safety and security contractors.-/ere received quality !ork digging, casings and fittings 4if necessary5. t is !orth mentioningthat if the installation and reception of re#ar over a long period 4over months5, it is necessaryto inspect the condition of re#ars #y a commission composed of the #eneficiary, executor, anddesigner representative State nspections in Construction !ill decide the oportunity experti-e ofconcrete rreinforcement #y an expert or a speciali-ed institute and carry out them in any case, if

    this frequency is found nonadherent , reinforcement ) after cleaning ) should not present areduction under section predicted in minimal deviation product standards, !ill then proceed to ane! reception quality.

    -Surfaces of poured concrete and earlier and hardened, !hich !ill come in contact !ith freshconcrete shall #e cleaned of film cement milk or impurities, surfaces should not present loose orsegregated areas, and should have rugosity to ensure good connections #et!een the t!oconcretes. 0re determined and prepared measures to #e adopted for continuing concreteing incase some accidental situations apears #y providing:

    ) Concrete station and transport of reserveB) Sumplimentary source of electricityB) Materials to protect concreteB) Conditions for creating a oint of !ork, etc..

    6ou can foresee the intervention of unfavora#le climatic conditions 4heavy rains,frost, storm, etc.5..

    0re provided for routing !ater from rainfall, so that they do not accumulate in areas to #econcrete.? 0re provided the necessary conditions to harvest the evidence in place for !ork and formaking determinations under fresh concrete, the do!nloading of the vehicle.? t esta#lished the management of any shipments of concrete terms that do not meet theesta#lished technical and are denied.ased on inspectionsto fulfill entirely a#ove mentioned conditions !ill record the start ofconcreteing #y: representative payee, the technical execution and in the decisive phases, the

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    designer, a representative of State nspections in Construction, according to the quality controlof !orks )) esta#lished #y contract. 0pproval to start concreteing must #e reconfirmed on the#asis of ne! checks in cases !here:) Events have intervened to alter the nature of situation to date 4!eather, accidents, #usiness

    resumption to !ork and nor suspended, etc.5.) Concreteing not started !ithin < days from the date of approval.efore pouring the concrete must #e verified correct operation of equipment for local andcompacting concrete.

    GENERAL CONCRETEING RULES

    /hen pouring the concrete the follo!ing general rules, !hich may #e completed %E &'()**, must #e o#eyed:

    a5 /ooden casings, old concrete or masonry, !hich !ill come in contact !ith the fresh concrete,

    !ill !atered for (); hours #efore and right #efore the pouring of the concreteB

    #5 he unloading of the concrete, from the transportation, !ill #e done in: #ins, pumps,

    transporting #ands, gullies or directly onto the !ork placesB

    c5 f the concrete #rought to the placement space presents segregation or it does not comply to

    the consistency norms it !ill #e refused or an additive !ill #e used to improve the

    consistencyB

    d5 he height of the concreteHs free fall !ill #e no longer than ; mB

    e5 Concreting the cased elements on heights higher than ; m !ill #e done through lateral

    !indo!s or !ith a hoseB

    f5 he concrete must #e homogeneously spread along the element in hori-ontal layers of

    maximum =& cm, and the pouring of the ne! layer must #e done #efore the hardening of the

    previous layer.

    g5 Measures !ill #e taken to prevent the deforming or displacement of the reinforcements from

    their initial positionB any errors !ill #e corrected during the pouringB

    h5 he thickness of the concrete layer !ill correspond to the indications to the proectB

    i5 t is for#idden to place the vi#rator on the reinforcementsB

    5 /here the reinforcements are thick special attention is necessary to ensure the complete

    filling of the section !ith concreteB

    k5 Aollo! the #ehavior and maintaining of the initial position of the casings and ensure their

    sustainingB all errors !ill #e corrected immediatelyB

    l5 he !orkers are for#idden to travel directly on the reinforcements or the fresh concreteBm5 he concreting !ill #e done continuously up to the oints foreseen in the proectB

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    n5 he maximum interruption #et!een concretions is ( hours in the case of the cement !ith

    addition compounds and '.= hours in the case of the cements !ith no addition compoundsB

    Co&-a#t!$g #o$#rete

    Concrete !ill #e compacted enough to contain a minimum quantity of air stop.Compacting concrete is required and can #e done through different processes,depending on the consistency of concrete, type of item, etc.. $uring compacting ofthefresh concrete !ill take care to avoid displacement and degradation of reinforced and >or casings. Concrete must #e compacted only as long as it is !orking.Manual compaction is admitting 4to rammer in parallel !ith hammering casings5 in thefollo!ing cases:

    ntroducion in concrete of shaker machine is not possi#le #ecause of si-e orthickness

    of reinforced section and can not #e effectively applied external vi#rationB

    #reak) do!n the operation of shaker)machine4fault, do!n the po!er, etc..5Concreteing

    must continue until the position corresponding to a point.

    Me#a$!#a #o&-a#t!o$

    n general, mechanical compaction is vi#rating. 6ou can use the follo!ing procedures ?i#rating:

    using internal vi#ration nterior shaker)machine

    using external vi#ration shaker)machine for framingBsurface vi#ration using plate shaker)machine.

    I$ter$a *!0rat!o$

    s the main method of compaction of concrete. ype of shaker)machine shall #e defined andsupplied to the site #efore #eginning of concreteing. Choice ofshaker)machine 4 head si-e, strength and harmful to the proper frequency5 !ill #e madedepending on the si-e of elements and possi#ilities of introducing a shaker head 4cylinder5through reinforcement #ars.

    Concrete consistency compacted #y internal vi#ration depends on the shape and

    texture of reinforced element. 2ptimum duration of vi#ration is #et!een = seconds and amaximum of ;& seconds depending on the concrete and settling type of vi#rator use.. hicklayer of concrete su#ected to vi#rate is recommended to not exceed ; > 8 length of headshaker 4#ottle5. 2n a ne! layer compaction, #reaking cylinder #e from =& mm to '=& mm incompacted layer a#ove.

    Signs outside after that recogni-es that ended vi#ration are:) he concrete is not settlingB) he surface of concrete #ecomes hori-ontal and glosyB) Stop the occurrence of #u##les on the surface of concrete.

    E6ter$a *!0rat!o$

    t is indicated in the case of monolithic cast items reduced thickness and frequentfittings, prefa#ricated elements, or !hich can not #e compacted #y internal vi#ration. n areas

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    !here it is possi#le to use additional interior shakers. f items compacted !ith outdoor shakers!ill take constructive measures, the casings #y increasing the rigidity and provide as far aspossi#le links #et!een elastic casings and the support .Consistency of compacted concrete #y external vi#ration is recommended to #e settling !ith

    minimum =& mm.

    Sur%a#e *!0rat!o$

    t !ill use the compacting plate thickness exceeding (&& mm. Consistency ofcompacted concrete vi#rating surface is recommended to #e settling !ith minimum (& mm. t isrecommended that the duration of vi#ration to #e ;& ... & seconds. hick layer of concretepoured 4#efore compaction5 should #e '.;= ... '.' times higher than the final thickness ofcompacted layer, depending on the consistency of concrete. f the sample calculations providedin the preceding paragraph shall #e determined and thick layer of concrete poured for therequired thickness of the finished item.

    $istance #et!een t!o successive positions of the vi#rant #oards should #e esta#lishedso as to #e assured of minimum overlap =& mm compared to the previous position.

    PERFORMANCE OF CONCRETE (OR4S IN TEC/NICAL REQUIREMENTS OR T/ROUG/SPECIAL PROCESSES

    C)('#t# '$t 8> /,7/%(

    Materials used for the preparation of concrete poured #y pumping dosage should #emixed and controlled properly, the essential conditions for an optimal concrete pumping

    technology.. Maximum aggregate si-e !ill #e limited to ' > ; the diameter of pipe repression.Classes of concrete recommendations to achieve in the current process for this !ork are in C9>'&...C (&>(=. Concrete pumping another class located outside this area !ill #e made onlyafter some preliminary experimental attempts to prove the applica#ility of the process."ut in pumped concrete !ork !ill take all measures so that:) he pump to run continuously, !ithout interruption, !hich favors #locking in concrete pipesB) he height of free fall of concrete to #e max. &.=& m) hick layer of concrete to #e max. 8& cm) Concrete to #e compacted #y vi#ration.2ther recommendations on the composition of concrete pumping technology and are given inChapter ' ) section '.; of the Code %E &'()**.

    E6e#ut!o$ o% #o$#rete or,' +ur!$g #o+he #asic characteri-ation of the cold period of time is exterior air temperature , !hich

    is measured at 9 am, in the shade, at (.&& m height from the ground and the minimal distanceof any #uildings or other construction. JCold dayJ is called the day !hen outside air temperature

    C and trends are not clim#ing.is lo!er than N =

    echnical regulation for the execution of construction !orks on time is the norm C')98 !hichcontains all the activity in those conditions. Some of the provisions for the execution of concrete!orks are descri#ed #elo!, they !ill #e supplemented #y other requirements of the norm C ')98:

    ) he execution casings need to #e cleared of sno! and ice #y mechanical means and finally, ifpossi#le, through a et of hot airB) mplement the su#stances !hich is easier to decase only after cleaning and drying areaB) /ill #e given a special attention proping supporting elements casings taking appropriate

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    measures depending on the #ehavior of frost in the land, namely: ) lands for sta#le support tofrost !ill #e placed on the foot

    on level ground and cleaned in advance of sno!, ice and vegetation layerB) Fnsta#le lands for the frost, and in cases fillings,

    "osts !ill sit on the #eams !ith large support surface #uried under depth of frost on theexisting foundations.) Aittings !ill #e stored on dry land, equipped !ith compacted gravel platformsB) ars covered !ith ice !ill #e cleared #efore the cutting and trimming #y hammering, #yscratching !ith the appropriate tools or et of hot air melts the ice !ater and drying results. %otrecommended ice melting hot !ater unless there is certainty that it !ill not fro-e again. t isfor#idden to deicing !ith flame.) Shaping of re#ars !ill #e done only at positive temperaturesB) he preparation of concrete !ill take a quantity of !ater as lo! plastici-er and additives.) 0ggregates have to #e defrost #efore placing in masticator 4prohi#ited icing hot !ater5 and#rought the minimum temperature of N = C. he aggregates should not contain porous granules

    to #e gelive.) 0t the preparation !ill #e displayed #inding recipe preparation of the concrete, along !ith dataon:

    ) Minimum temperature of the !ater and aggregates into masticatorB) $uration of aggregates #y mixing !ith !ater, adding to the cementB) he total of mixingB) emperature of concrete at the do!nloading of the masticator and temperature of concrete at

    the site of release in opera.) /hen transporting concrete o#ect on its !ork and the maturation !ill take steps to limit theminimum loss of heat #y:a5 #enefit #y protecting their thermal insulation and cover the period of !aiting

    !ith sheets of polyethylene or tarpaulinsB#5 to minimi-e the !aiting time of concrete from the discharge to

    #ringing the place to put into !orkBc5 the immediate protection of the item under concrete solutions provided under theinsurance scheme of heat 4see 0nnexes C and $ of C ')985.) t is compulsory for all compacting concrete cast during cold mechanical vi#ration.) /hen putting in the concrete !ork !ill comply !ith the provisions of 0nnex 0 of C ')98.) Start or resumption of any !orks of concreteing interrupted #ecause of frost and entered inthis condition during the de#acle is allo!ed only after proper preparation get interruption.) "rotect concrete after putting in !ork must #e done as fast as possi#le. /ill #e usedinsulated casings thermal mattresses, etc., al!ays covered !ith sheets of polyethylene or!aterproof canvas tarpaulins of !hich is tightened the insulation .) he place to put into !orkconcrete required !ill #e displayed:

    he temperature of concrete at deliveryB he temperature of concrete at the end of the operaB @evel of insurance for old 4conf C ')985B o! to protect the concrete after castingB he proect to o#tain the degree of maturation critical.) $ecasing can #e made only if the conditions in %E. &'()**.) he conditions of decasing !ill control the tests of concrete tu#es kept in the same thermal

    regime as the construction, according to %E. &'()**.

    (OR4ING 7OINTS

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    0s far as possi#le, avoid !orking oints organi-ing the execution so that concreteing to do!ithout interruption at that level or t!o of expansion oints. /hen !orking oints can not #eavoided, their position must #e determined #y design or through execution.

    he num#er of oints should #e minimal #ecause they may have a lo!er resistance incomparison !ith the rest of the structure if they are inadequately treated. 0lso there is a riskmitigation of impermea#ility consequences in the sense in reducing the degree of protectionagainst re#ar corrosion.

    /ork oints !ill #e located in areas of the structure elements !hich are not su#ect to greatefforts during the operation.n determining the position of !orking oint !ill o#serve the follo!ing rules:) he columns !ill #e provided !ith oints only at the #aseB) he #eams, if for reasons of proof can not avoid, the oint !ill #e placed in the area !ithminimum #ending momentB) f the #eams are concreteing separately !ork oint is placed at ;& ... =&mm #elo! the #ottom

    of the plateB) 0t plates, the oint !ill #e situated at ' > = ... ' > ; of the plate openingB) he ri##ed floor !hen concreteing stringers in the direction, the oint is made in the area#et!een ' > = and ' > ; of the opening of stringersB) he ri##ed floor !hen concreteing is on the direction perpendicular to the stringers, the oint ismade in the area #et!een ' > = and ' > ; of the main opening of the #eam , looking on aspossi#le, as can get, the oint is to '>=...'>; of its initiation.Surface oints of columns and #eams to #e perpendicular to the axis of these, and at the platesand !alls, perpendicular to their surfaceBreatment of oints is as follo!s:) /ash !ith !ater et and air pressure after the end of gripping the concrete 4a#out = hours from

    concreteing, according to results of la#oratory tests5B) efore concreteing, area of the !orking oint !ill get cleaned,removing the concrete that !asnot !ell compacted and > or !ill ru# !ith the !ire #rush to remove the milk film of cement andother impurities, then it !ill #e moistenB) efore concreteing, old concrete surface must #e dry and left to a#sor# !ater after the Jsaturated concrete #ut dry surfaceHH.

    1equirements for handling the !ork oints set out must #e fulfilled in the case of ointsJunintendedJ !hich appeared as a result of climatic conditions, due to defects, etc..

    DES/UTERING

    he construction can #e deshutered !hen the concrete has reached a certainstrength. e taken into account the special condition of deshutering concrete elements !hichhave undergone fro-en in strengthening phase 4for unprotected concrete5.

    he construction can #e deshutered !hen the concrete has sufficient strength to take fullor partial, as appropriate, the tasks for !hich they !ere designed. 6ou pay attention to elementsof construction after nearly deshuter, #ear the #urden predicted in the calculation./e suggest the follo!ing values of resistance !hich can deshuter:

    ) Sides of the casings can #e removed after the concrete has reached a strength of at least (.=%>mm(, so that sides and edges items!ill not #e damaged 4target ( days for a temperature of=degC and one days respectively for a temperature '=deg C5.'. Casings of inferior #eams and plates sides !ill #e removed or maintaining safety

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    #ucket !hen the concrete strength has reached to

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    eams !ith opening max. .&& m '9 '8 * '& 9 =eams !ith opening .&&)'(.&& m (' '9 '( '8 '' protection are:) Maintenance in casingsB) Cover !ith protection materialsB

    ) "eriodical spraying !ith !aterB) he application of protective films.

    $uration guidance 4in days5 treatment of concrete

    $evelopment of resistance of concrete rapida medie lentaConcrete temperature during treatment 4:C5 = '& '= = '& '= = '& '=

    Environmental conditions during treatmenttems exhi#ited indirect sunlight, or humidity L'!(

    ( ( ' ; ; ( 8 8 (

    tems exposed sunlight or average !ind speedaverage humidity over %!(

    8 ; ( 8 ; 9 = 8

    tems exposed sunlight or average !ind speedaverage humidity under %!(

    8 ; ( 9 = '& 9 =

    n ta#le are presented recommendations for the treatment of concrete !ith cement type 4"ortland5 and temperatures of =, '& '= 44&C 5. $uration of treatment depends in su#stantialtemperature concrete. Aor example at ;&&C during treatment can #e approximately half theduration of treatment at (&&C concrete. hus isolation of the framing can #e a method ofreducing treatment time.n the a#sence of data on the composition of concrete and exposure to conditions ) to ensurefavora#le conditions and reduce strains in contracts ) !ill maintain humidity for at least < daysafter casting.

    Cover !ith protection materials !ill #e done !ith tarpaulins, matted, layer of sand, etc..his operation !ill #e done as soon as the concrete has gained sufficient strength for thatmaterial !ill not adhere to the surface covered. "rotective materials !ill #e permanentlymaintained in !et condition.Spraying !ater #egins after ( )'( hours of casting, depending on the type of cement used andtemperature, #ut immediately after the concrete is sufficiently hard so that #y this operation arenot trained cement paste. Spraying !ill #e repeated at intervals of ( ) hours, so that theconcrete surface to maintain a permanent !et. /ill use !ater that fulfills the conditions as

    similar to the !ater for mixing the concrete.f the temperature is less than 4N =&C5 !ill not proceed !ith spraying !ater, #ut appliedprotection materials. "rotective film is applied in accordance !ith special regulations. n !et!eather, fresh concrete surfaces !ill #e covered !ith tarpaulins or sheets of polyethylene, aslong as there is the danger of precipitation fall antrenarii cement paste. Concrete that !ould #ein contact !ith !ater from precipitation !ill #e protected #y the action of !ater diversionprovisional for at least < days

    .EXECUTION OF INJECTED CONCRETE / MORTAR

    /ill #e used only cars suita#le inection and !ill comply !ith instructions for use thereof.o ensure a uniform et of gunite !ill use a stream of compressed air according to the type of

    equipment at a constant pressure. f necessary, to purchase a #uffer tank #et!een thecompressor and the inection machine.

    t !ill remove all impurities from the surface over !hich inected mortar !ill fall and it !ill

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    #e cleaned, #rushed and dampened. et!een the time of preparation of mixture and applyinggunite to the surface should not move more than an hour. nection no--le !ill #e perpendicularto the surface of support. $istance #et!een no--le and surface of support !ill #e #et!een &.=m and ( m depending on availa#le pressure no--le. 0pplying layers of gunite !ill #e circular

    movement of no--le. nection !ill start from the top do!n and !ill take measures to preventsurface maculation uninected yet.0nchors for concrete can solidari-e !ith epoxy mortar that consists of t!o elements:

    epoxy resin and aggregates of agglomeration. Mortar !ill have a strengthening period of (hours.Concrete anchors to #e placed in holes made in the masonry and > or existing concrete #oringmill type roto)hammer !ith po!er drills and tungstren adusted. oles are cleaned !ithcompressed air !ithout oil. 0fter cleaning the hole is given a prime of epoxy resin, after !hichthe anchors are inserted.

    CHECKIN< THE ;UALIT. OF WORKS! DEVIATIONS ALLOWED

    7E%E10@ES

    he code %E &'()** regulations provide mandatory minimum measures necessary forthe control of the execution of structures of concrete and reinforced concrete. Control includeskey actions and decisions and checkings to #e done in accordance !ith the technicalregulations, in order to meet specific technical requirements.

    C2%12@ S6SEMS

    a5 nternal control: ) held #y manufacturers and > or performer in every field of activityB ) such control is exercised:) 2f its o!n initiative 4internal control procedures5B) n accordance !ith rules esta#lished #y the foreign investor or #y an independentorgani-ation, at the request of the investor.

    #5 External Control: ) is performed on an enterprise #y an independent #ody.) external control may consist of:

    ) ?erification of internal control measures 4if they are in accordance !ith the procedures forexternal control5B) 0dditional verification procedures independent of internal control systems.

    c5 Control of conformity: ) exercised to check that a unit operation or production is carried

    out in accordance !ith esta#lished rules. Monitoring compliance is generally part of the externalcontrol and carried out #y independent #odies authori-ed for activities leading to thecertification of products used in construction, in accordance to the 7$ *8.he controlHs frequency and intensity depend on the consequences caused #y some possi#leerrors in the various stages of the execution > production of concrete and are esta#lish throughprograms of control on the factors involved. n terms of frequency and measures to take in thequality control of materials and concrete provisions, the reglementations are specified in code%E &'()** ) 0nnex ?.'. Iuality control of !orks execution is #ased on @a! '&>'**= on thequality of construction, 7$ (*8, .7. *(=>*= and .7. * production of concrete can #e executed #y the field engineer in

    the control system inside, ensuring appropriate levels of quality, or #y the responsi#le

    Telefon/Fa ! "40212402959; E#a$l!%&'()&('$*e%$+n,-aoo.)o#;%&'()&('$*e%$+n,+#a$l.)o#

    2:

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    techniques !ith specific tasks, or #y an independent #ody 4external control5. n #oth cases it is

    necessary to have adequate facilities 4equipment, apparatus, personnel5 for inspection and

    determination.

    1elevant data on the control of the execution > production of the concrete must #e recorded

    in the form of records or other documents. 0ll deviations from the procedures specified in terms

    of transport, unloading, concreting, compaction, concrete treatment, etc., must #e recorded and

    reported to the responsi#les !ith the !orks execution.

    he control of the execution > production of concrete done #y the executant !ill #e checked

    #y an investor or #y a #ody authori-ed, as part of the control of compliance.

    ests and determinations made in during the control of the execution > production of the

    concrete may #e considered for the control of compliance 4conformity5.

    Checking the quality of materials and concrete components !ill #e made in accordance !ith0nnex ?. code %E &'()** and respecting the follo!ing:

    ) $oes not allo! s!itching to a ne! phase of execution #efore the conclusion of the protocol onthe previous phase, if it is to #ecome a !ork hiddenB) he minutes !ill indicate the findings, !hether they are corresponding to the proect and if itadmits s!itching to the next execution phaseB) Aalse if found against the proect or prescriptions, it !ill esta#lish and record the necessaryremedial measures. 0fter their execution it !ill proceed to a ne! revie! and a ne! record.

    CONTROL AND RECEPTION OF WORKS OF CASIN

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    2n completion of installing the reinforcement, the follo!ing aspects !ill #e verified:

    %um#er, diameter and position of re#ars in different cross)sections of structural elements

    $istance #et!een stirrups, their diameter and their fittingsB @ength portion of the #ars that exceed #earers or that are to #e incorporated in elements

    that are su#sequently pouredB

    "osition of oints and length of a #ar partyB

    Iuality of !eldsB

    he num#er and quality of links #et!een the #arsB

    $evices used to maintain the position of the reinforcement during the concretingB

    o! to ensure the layer thickness of concrete cover and its dimensionsB

    "osition, mounting and dimensions of em#edded parts.

    he !elded oints shall #e performed only #y !elders !ho have supported the theoreticaland practical examination for 7roup ; of the !elding reglementations, according to S0S*=;(>')

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    a5 0void delivery and putting in the !ork of a concrete !hose features do not meetthe required conditionsB

    #5 0doption of operational measures at the concrete station for the correction ofconcrete composition or preparation conditionsB

    c5 $etermination of cases in !hich the concreteHs resistance is inferior to the limitsrequired, in this case the designerHs analysis is mandatory.

    C)(t)" ,%( t$(/)t$t%)(* t#$t7#(t $( ')('#t# ')7/$'t%)(

    nspections should consider the follo!ing essential aspects:maintain the uniformity in the concrete during transport and putting in the !orkBuniform distri#ution in a concrete casingBuniform compaction and avoid segregation during compactionBmaximum fall height of the concreteBpouring speed, taking into account the action of the concrete on casingsB

    the duration #et!een the stages of mixing, pouring concrete and unloadingBspecial measures in the case of concreting under cold or !arm !eatherBspecial measures !ith separating linesBtreat oints #efore concretingBtreatment methods and duration of treatment depending on atmospheric conditions andevolution of resistanceBavoid any damage that may occur as a result of shocks or vi#rations on the fresh concrete.

    0nnex ?.(. of %E &'()** presents a detailed verification to #e carried out in various stagesof execution.The quality o) concrete will be areciated taking into account the conclusions o) the

    analysis carried out under the control o) con)ormity "the ca.&*.+.+. o) ,- !&+//#0 over theresults o) the tests )or the concrete1s class o) resistance0 resented in the bulletin issued by thelaboratory and the conclusions o) the )indings and interretations0 )or the nondestructive orcoresamle test results0 i) required to er)orm within the comliance control .

    he quality result assessment made for the concrete shall #e recorded in a protocolsigned #et!een the designer, #uilder and investor. f quality conditions are not fulfilled thedesigner !ill consider the necessary measures.

    $uring the concreting of structural elements it !ill #e checked if:) he !arrants !ritten on the concreteHs transport ticket are corresponding to the order and

    the maximum duration of transport has not #een surpassedB) Consistency corresponds to that requiredB) "ouring and compaction conditions ensure avoiding any defectsB) he necessary frequency for the tests and sampling, according to 0nnex ?.'. code %E

    &'()** is respectedB) he appropriate measures in order to maintain the reinforcement position, si-e and shape

    of casings, are correctly appliedB) he appropriate protective measures 4treatment5 for the free surfaces of fresh concrete are

    appropriate.

    he #ook of entry for the concrete !ill record: coupon delivery series corresponding to the poured concreteB

    place of concretingB

    time of start and finish of concretingB

    Telefon/Fa ! "40212402959; E#a$l!%&'()&('$*e%$+n,-aoo.)o#;%&'()&('$*e%$+n,+#a$l.)o#

    "0

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    concrete samples takenB

    measures taken to protect fresh concreteB

    occurred events 4do!n the concreting, !eather, etc.5B

    temperatureB

    staff !ho oversa! concreting.

    n cases in !hich the !ork leader is directly responsi#le for the concrete preparation,he iso#liged to check in parallel the quality of cement and aggregates as specified earlier, and alsothe dosing, mixing and transporting of concrete. he findings of these checks are part of theconcreteHs #ook of entry.

    QUALIT; CONTROL OF CONCRETE AND REINFORCED CONCRETE ELEMENTS

    $uring the dismantling of any construction element, the next aspects are to #e checked:

    o 0ppearance of elements announcing any inadequate concrete areas 4concrete loose,

    segregated, gaps, etc.5.o Cross sections dimensions of concrete elementsB

    o he distance #et!een different elementsB

    o he vertical elements 4columns, !alls5 in comparison !ith the corresponding situated at

    the inferior levelBo he gaps positionB

    o 1einforcement position in elements, that are su#sequently poured in concreteB

    he checkings mentioned a#ove are done #y sampling. t !ill #e recorded in the minutesif the provisions of this proect are foll!ed. /hen recording findings it !ill #e according to theprovisions of 0nnex .'. of %E &'()** on Jirregularities eligi#le for reinforced concreteelementsJ and Jallo!a#le defectsJ ) 0nnex .(. of %E &'()**.

    QUALITY CONTROL FOR GUNITING WORKS

    7uniting !orks !ill #e done in accordance !ith the requirements of Chapter '< of theCode of "ractice %E &'()**. he quality of the materialHs adherence to the support surface !ill#e checked #y soft hammering the area. he areas !hich sound void !ill #e removed andgunited. he gunited mortar !ill #e assessed visually

    DEVIATIONS ADMITTED

    $eviations from accepta#le limits, during cutting and assem#ling the re#ars, are sho!n n0nnex .(. code %E &'()** and C=)9= norm, concerning the quality inspection and receptionfor the reinforced concrete elements.

    $eviation limits for fittings 4re#ars5 4mm5:

    Ele#ent

    D%stance

    'et+een'ars

    Co8er

    la(ert,%c10 #

    L la&

    Wel7e7la&

    Pos%t%on

    o$ la&

    OBS/

    Fon7at%ons 10 9 10 ! 20 "0 "7 !0 C2*)*"

    Telefon/Fa ! "40212402959; E#a$l!%&'()&('$*e%$+n,-aoo.)o#;%&'()&('$*e%$+n,+#a$l.)o#

    "1

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    Walls ! 9 " ! 20 "0 "7 !0 C2*)*"

    Col#ns " 9 " ! 20 "0 "7 !0 C2*)*"

    Bea#s " 9 " ! 20 "0 "7 !0 C2*)*"

    Sla's ! 9 2 ! 20 "0 "7 !0 C2*)*"Bet+een

    st%rr&s 10 ) ! 20 "0 "7 !0 C2*)*"

    0ccepta#le deviations limits compared to the proect dimensions for the casings , arecontained in C =)9= norm, !ith some additional o#servations indicated in 0nnex .'. of code%E &'()**.

    0ccepta#le deviations for the casings and the dismantled elements of concrete andreinforced concrete

    CASIN? DISMANTLED ELEMENT

    Sect%on Incl%nat%on

    D%#ens/ @ert%cal or%ontal

    Ele#ent Re$erence

    7%#ens%on

    De8/

    4##5

    Cas%n3

    an3le

    A$ter 7%s#antle 1 #

    1 #2total 1 #

    1 #2total

    Fon7at%

    ons

    Len3t,

    W%7t,

    e%3,t

    1!

    6

    10

    " ###

    1! ##

    4total5

    20 ##

    =2#/// 20 ##

    >2#/// "0 ##

    " 16 !

    20

    Walls Len3t,

    e%3,t

    T,%c!0 c#///*##

    " 16 20

    Bea#s Len3t,

    Sect%on

    D%#ens/

    10

    "

    2 ### %7e# col#ns

    %7e# col#ns

    ! 10

    Sla's Len3t,

    4W%7t,510

    10

    10 ##

    4total5="#/// 16 ##

    ")6# ///20 ##

    10

    Telefon/Fa ! "40212402959; E#a$l!%&'()&('$*e%$+n,-aoo.)o#;%&'()&('$*e%$+n,+#a$l.)o#

    "2

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    T,%c10 c#// !##

    he deviations from the elementHs casings required dimensions, ready made 4 extractedfrom the norm C =)9= !ith add)ups5:

    ) For len3t, ##

    ) For +%7t, " ##

    $eviations from the dimensions required for the casings and the reinforced concreteelements after dismantling, are given in 0nnex .'. F.S. Code &'()**.

    $eviations from the dimensiond required #y the proect or #y the technical prescriptionsfor the fittings in the reinforced concrete elements, are given in 0nnex .( of the %E &'()**.

    ADMITTED DEFECTS

    he follo!ing defects on the appearance and integrity of the concrete and reinforcedelements are #eing admitted:

    o Surface defects 4pores, surface segregation, local humps5 !ith a maximum depth

    of ' cm, maximum area of 8&& cm( defect,all the defects of this type should #elimited to a maximum of '&D of the elemenHs surface element, on the face of!hich they are locatedB

    o $efects in the coating layer of the re#ars 4local segregation5 !ith a depth less

    than the thickness of the coating layer reinforcement, maximum length = cm, and

    all such defects #eing limited to a maximum of =D of the edge length.$efects that are !ithin the limits mentioned a#ove may not #e included in the report!ritten at the examination of elements after dismantling, #ut it !ill #e necessary solved themaccording to norm C '8*>9< until the reception of the !ork.

    $efects that exceed the a#ove limits shall #e registered in the minutes !hich are dra!nup at the examination of elements after dismantling, and they !ill #e solved according to thesolutions determined #y the designer and > or expert if necessary.

    Telefon/Fa ! "40212402959; E#a$l!%&'()&('$*e%$+n,-aoo.)o#;%&'()&('$*e%$+n,+#a$l.)o#

    ""

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    RECEPTION OF THE RESISTANCE STRUCTURE

    he reception for resistance structure !ill take place on the !hole #uilding or parts of it,according to norm C = ) 9=, 0nnex .'. his reception is #ased on the direct examination

    performed during the execution, through the interior or exterior control.0dditionally it !ill check:

    documents certifying the quality, stipulated #y the regulations in force, of the

    delivered materialsB

    the existence and content of minutes of the quality reception for casings,

    reinforcements, the elements aspect after dismantling ) assessing the quality ofconcrete used for the structural elements, and the existence and content ofminutes for the decisive phasesB

    he existence and content of quality certification documents, in case the concrete

    !as supplied #y another construction unitB

    Aindings recorded during execution through the interior and exterior controlB

    Confirmation through records of the correct performance measures,provided in

    various documents issued during executionB

    1ecords in the #ook entry of concreteB

    ulletin on the quality of concreteB

    2verall si-e and rates of levelB

    ?arious dimensions in relation to the proectB

    he gaps provided in the proectB

    1elative position on the height of the construction of vertical elements 4columns,

    !alls5B

    0ny other check is considered necessary.Aor the reception of a resistance structure, if requested #y the designer, the executant !ill

    present to the investor the analysis #ulletins for the reinforced concrete #y non)destructivetesting. he designer chooses the elements and the num#er of tests. %on)destructive tests shall#e conducted according to norm C ()9=. Checks and the findings from the reception of theresistance structure shall #e recorded in a protocol signed #et!een the investor, designer andexecutant,stating the conclusion !hether the structure is accepted or reected.

    n cases in !hich deficiencies in the execution structure are found, the remedial measures!ill #e determined, and after their execution, a ne! reception !ill #e scheduled.he cover the structural elements !ith other !orks 4!alls, plasters, protection, finish5 ispermitted only on the #asis of a disposal given #y the investor or the designer. his disposal !ill

    #e availa#le only after the reception of the resistance structure , or in some ustified cases, afterthe partial reception of the structure.

    he examination of concreteHs resistance at the age of (9 days !ill #e taken at the finalreception of the structure. he quality of concrete delivered #y concrete station !ill #eapprecited #ased on the analysis results at the age of (9 days on samples taken at concretestation in accordance !ith 0nnex ?.; details. of %E &'()**. Aollo!ing this analysis, thepossi#le necessary measures in order to improve the quality of concrete, !ill #e taken.

    M#$,# $( #tt"#7#(the measurements are made as follo!s:) Aor concrete !ork: the mc. poured concreteB

    ) o !ork casings: the square meters. executed #y framingB) Aor reinforcement !orks: per kg. shaped #y reinforcement and assem#led

    Telefon/Fa ! "40212402959; E#a$l!%&'()&('$*e%$+n,-aoo.)o#;%&'()&('$*e%$+n,+#a$l.)o#

    "

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    SPECIFICATION FOR

    BITUMINOUS (ATERPROOFING

    Co$te$t'

    7eneralities

    1eference Standards and %ormatives

    Materials and equipment used. Iuality Checking. $elivery, andling, Storage

    Execution echnology

    Checking the quality of !orks. 0dmissi#le $eviations

    Measurements and settlements

    Telefon/Fa ! "40212402959; E#a$l!%&'()&('$*e%$+n,-aoo.)o#;%&'()&('$*e%$+n,+#a$l.)o#

    "!

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    1! ( 9< )/aterproofing and #ituminous materials in constructionelements.

    #5 S0S (;==>; 9< )ituminous !aterproofing on roofs and terraces.

    c5 C''( 9 )%ormative for the design and execution of #ituminous!aterproofing.

    d5 S0S '&8

    2ther materials for protection 4sand, gravel < ) '= mm5, according to S0S '< >

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    Concrete and mortar to achieve: the concrete panta, support #lanket and protection

    under the rules in force.

    DELIVER;< /ANDLING< STORAGE

    Materials used must meet the quality standards and !ill #e accompanied #y certificates

    of quality.

    andling and transport of #ituminous materials !ill #e made carefully so as not to

    damage them, on short distances.

    0ll materials for !aterproofing in rolls !ill #e stored at least under sheds and !ill #e

    spared any from #lo!s.

    $uring the storage process itHs necessary to take all the measures to guard against fire,

    according to the rules in force.

    4! EXECUTION TECHNOLO

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    he vapor #arrier !ill #e applied on a concrete layer over the diffusion layer , glued and

    coated !ith #itumen mastic !ith overlapping of sqm hot#itumen mastic, lying it on sheets !ith #itumen.

    $uring thier installation on the roof, the thermal insulation #oards !ill #e applied !ith the

    unprotected side, in hot #itumen mastic coverage against vapor #arrier, !hich !ill notexceed the temperature of '=& P C during sticking.

    he !aterproofing made of multiple layers for terraces and roofs !ith the inclination of

    Max. (&D !ill #e made up #y sticking the #itumen sheets,on the !hole surface, !ith#itumen mastics prepared !ith more than ;&D filer minerals, !ith the softening point '#

    according to the inclination 4up to (&D #itumen 9&>*& 5.

    o implement on the roofHs surface the !aterproofing, the rolls of #itumen sheets !ill run

    on the support surface and it !ill #e cleaned #y energetic #rushing, after!ards it !ill #eleft a time for relaxation and correcting sheets.

    he technology and the conditions of !aterproofing layers are mentioned in the norm C

    ''( ) 0rticle 9. ;.(&.( ) ;.(&..

    /aterproofing for vertical elements 40ttic, ventilation systems, #askets, etc..5 !ill run !ith

    tailored dimensions strips, rolled on the layer of hot #itumen, from the #ottom up,overlapping the gorges in steps of 8& ) =& cm.

    0t the corners, edges and other places !here #itumen sheets may not #e rolled, it is

    accepted to apply #y tension the mastic on the #itumen sheet, !ith immediate stickingand pressing, controlling the adherence and continuity in these places.

    0t the attics !ith the height up to & cm, the !aterproofing !ill #e turned on the

    hori-ontal part of attic, minimum '& cm and in the case of a greater vertical height, it !illrise up to =& cm and it !ill #e fixed !ith #olts and plat#anda, shot at distances of aprox.=& cm.

    he protection of !aterproofing for vertical elements on routes, !ill #e done !ith cement

    mortar M '&& approx. ;& mm thick, reinforced !ith ra#it- on the net!ork of steel)

    concrete Q mm to (= cm.

    he sealing at the punchings !ill #e #ased on the elementHs diameter and its physical

    and mechanical requirements as follo!s:

    n cold and !ithout vi#rations punchings, !ith a diameter less than (&& mm and flanges,

    the !aterproofing !ill #e applied on !elded flanges and !ill #e pierced !ith mo#ileflanges !ith scre!s.

    n cold and !ithout vi#rations punchings, !ith a diameter less than (&& mm and !ithout

    flanges, the sealing of !aterproofing !ith vertical elements !ill run after the filling of the

    gap !ith mortar round the element, !ith t!o layers of cloth or fa#ric glued !ith mastic#itumen and splice element !ith !ire or necklace.

    Telefon/Fa ! "40212402959; E#a$l!%&'()&('$*e%$+n,-aoo.)o#;%&'()&('$*e%$+n,+#a$l.)o#

    "*

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    the expansion oints !ith re#ord are tight and insulated under C ''( ) 9 paragraphs ;.(8

    ) ;.(8.(.

    assem#ly drain mouths, connecting insulation, lead and collar mounting pipe plugs, etc..

    !ill #e under the same la!, the ;.(=, ;.( ) ;.(. P$/#

    efore the !ork of em#ankments, !ill perform the follo!ing preliminary !orks:

    deforestationB removal of leaves, #ranches, grass, !eeds, and othersB removal and storage layer vegetationB dry landB dismantling of existing structuresB preparation and approval #y the class master the procedures for execution of !orks ofem#ankments.

    /here necessary, Aield engineer must remove all trees, shru#s !ith roots and !ill carry the

    Telefon/Fa ! "40212402959; E#a$l!%&'()&('$*e%$+n,-aoo.)o#;%&'()&('$*e%$+n,+#a$l.)o#

    "

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    material in accordance !ith the rules and charge it. Aield engineer should respect the legalformality.

    he layer of ground vegetation !ill #e removed from the site and reuse it in the store !ill #e in

    temporary storage. hese deposits !ill not exceed (m in height.

    Existing structures !ill #e demolished to a depth of 'm #elo! the platforms.

    Fnderground structures, #asements, foundations !ill #reak under the proect.

    Aield engineer may #egin !ork only after the em#ankments of the preliminary details of theConsultant.

    he execution !ill #e received #y inspector for approval at least 9 days #efore the !ork ofem#ankments. hese should include information on the program for em#ankments, including

    equipment used in excavations, transportation, udara, compaction.

    he !orks of em#ankments can not #e done !hen soil is fro-en, or contain sno! or ice. he!orks of em#ankments !ill #e interrupted if the terms of these specifications are #eingundermined.

    E'$=$t%)( )3o avoid crashing #anks, !hich could lead to accidents and > or stops the flo! of !ork isrequired the follo!ing conditions: Maximum digging depth unsupported in narro! spaces: @and !eak cohesive: &.

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    =. mechani-ed digging should not exceed the proected profile of diggingB for this purpose!ill stop digging !ith approx. ;& cm a#ove the share of the proect as the follo!ing to #eexecuted manuallyB

    . during execution, Aield engineer is required to request geotechnician on this site,

    reaching quota foundation to determine !hether the nature of the land meets the foundation ofthe proectB class masterB9. if superficial damping due to atmospheric precipitation, #ottom of the hole must #e left

    to dry #efore starting #et.

    Co$+!t!o$' %or te '!te=

    Aield engineer:'. /ill not #egin any !ork until after receipt of the site and parts of level #ased on a

    protocol signed #y the nvestor > Consultant, $esigner and Contractor.(. efore #eginning !ork, !ill consult !ith authorities on the position and types of routes

    4pipeline5 ground!ater that may #e encountered.

    I$%or&at!o$ o$ o#a $etor,' o% ut!!t!e'=

    Aor the entire site !ill indicate routes of any existing utility net!orks in operation: !atersupply, se!erage housekeeping, pluvial drainage, electricity, telecommunications, gas, etc.. Aorpipelines near enclosure, !ill check their proofness.

    Vegeta0ee eart e6#a*at!o$

    Aield engineer:) /ill excavate least '&cm ) plant surface layer of the digging and > or a si-e determined #y theConsultant. /ill excavate a minimum depth of ;&cm layer of vegetation in areas that !ill provideplanting and keep excavate material for reuseB) Excavated earth !ill #e deposited in designated places in hald. his !ill #e kept separate fromother materials. Maximum distance that !ill #e transported !ill not exceed &m.) he spreading and leveling a ground layer of vegetation in the usual thickness of '&cm or;&cm to the areas indicated on the plans for planting shru#s and grass.

    E$%or#e&e$t Fou$+at!o$

    /ill run according to dimensions, profiles and levels specified in plans. Aield engineer!ill take all decisions necessary to solve technical situations !here local collapse > #anks in thescoop areas, and they !ill connect in steps, filling !ill #e done> compaction material properlyfilled !ith concrete or if it can not achieve compaction , all these measures !ill not involvechanges to the net volume of !ork.

    efore #eginning !ork, !ill check the dra!ing on the ground and form in the permittedtolerances, according to S0S *9(8 > ' JMeasurements land. $ra!ing on the field of civilconstruction, industrial and agricultural.

    Porta$t a"er

    Telefon/Fa ! "40212402959; E#a$l!%&'()&('$*e%$+n,-aoo.)o#;%&'()&('$*e%$+n,+#a$l.)o#

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    f the level indicated #y the land does not meet the requirements of the proect, !illannounce the designer > consultant !ho !ill determine ho! to continue the !ork.mpropers layers of earth and rocks found in the massive site !ill #e removed and the resulting

    gaps !ill #e filled !ith concrete as indicated or Consultant.

    (ater D!'#arge'

    he presence of underground !ater on deep excavations is a factor !hich #ringsmany sources of risk to #e taken into account in the design and implementation !ork.$e!atering goal is to remove !ater from the excavation and ensure !orking conditions in theland.

    he main methods #y !hich the removal of !ater from underground excavations are deep:) "umping !ater directly penetrate through the !alls and #ottom of excavationsB) @o!ering the overall level of underground !ater through !ells or filters aciculare)filters made#efore excavationB) 0chieve !atertight #arrier to prevent !ater entering the underground excavation.Choosing the most effective method depends on many factors, !hich include: the si-e andespecially the depth of excavations, the nature and thickness of layers of earth, the si-e of the!ater pressure in each layer, the presence in the vicinity of #uildings and utilitiesB time theexcavation !ill remain open.

    f the underground !ater level is a#ove the #ottom layer of digging, SC-

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    + $e!atering method should not affect near#y #uildingsB+ Method should #e chosen to avoid excessive loss of land from adacent mountain of theexcavations, !here the !ater flo! through the !alls of excavations.

    Mo$!tor!$g o% e6#a*at!o$'

    t must dra! up a proect monitoring of deep excavations in ur#an areas on tracking#ehavior over time to all premises in the area of influence of the !ork. his proect !ill #e part ofa proectTs overall o#ective.

    Monitoring !ill include, in all cases, make measurements topometry. hrough the proect !ill #eesta#lished:) @ocation of reference landmarksB) @ocation of settling marksB) he measurements in accordance !ith the provisions of S0S ( ' 4most rain in a year5./here deep excavations !ith !idths greater than (& m, terminated #ased in marne or clayformations, it is recommended to conduct measurements of movements of excavations, fromexcavations and construction achievement.

    1eport containing the results of measurements should #e for!arded to the #eneficiaryand designer !ithin = days of the end of phase measurements. he report !ill #e interpreted #ythe designer, !ho !ill determine any necessary measures. hese measures #ecome mandatoryfor the manufacturer during the execution of the !ork.

    $eep excavation in ur#an areas is a !ork of particular, for geotechnical andhydrogeological conditions play a preponderant role.n the technical phase of the proect or proect phase single geotechnics expertise !ill need toassess the accuracy of the solution adopted to geotechnical risks identified.

    $uring the execution of !ork, expertise geotechnics !ill determine the extent to !hich

    the land encountered are consistent !ith those recogni-ed #y the research foundation of theland and the need to adapt technology or proect implementation in these circumstances, toreduce risk to an accepta#le level.

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    S.C STRUCTURI DESIGN S.R.L; J40/14427/19.08.2005; C.U.I 17885420

    Re&o*!$g &ater!aExcavated material inappropriate for stuffing or in surplus !ill #e removed from the site. he

    consultant may askethe field engineer to !ithhold inappropriate material on the site for use asmaterial for decorating the end !orks.

    Culvrts for !ater and pluvial drainage tu#es !ill #e diverted as indicated in the plans. f

    during excavations meet drainage tu#es or underground channels !hich consultant should #einformed and !ill ask for instructions.

    f ground!ater is encountered routes other than those indicated in the plans !ill #e informed#oth the designer and consultant, the competent authorities and shall o#tain instructions fromthem.

    $raineged disused encountered during excavations !ill #e removed.

    Aoundations unused > unfit encountered during excavations !orks !ill #e removed/

    Ar#eoog!#a D!'#o*er!e'

    f during excavation !orks, archaeological o#ects are discovered, it !ill immediatelystop !ork near them and !ill notify local authorities under the la!.

    Stu%%!$g (or,' t spread and levels filling of land in many layers of loose (=&mm. Stuffing is made so that

    !ater can drain freely on the surface a#ove. /ill recover compacted stuffing !here deterioratedduring the execution of !orks.

    Each layer of filling !ill #e carefully compacted and consolidated to at least *=D ofmaximal density measured in "rocter test for the degree of compaction under S0S '*';>';)9;. he degree of filling moisture should #e #et!een N > )(D of optimum moisture content forgranular material and #et!een &.9 and '.( times the plastic limit of cohesive materials.

    E6e#ut!o$ o% e6#a*at!o$' or,' +ur!$g #o+

    Enforcement !orks excavations during cold !ill comply !ith all provisions norm C')98 J%ormativ for a #leak time of construction !orks and related facilitiesJ for this type of !ork.Some provisions of the norm are given #elo! in the specification

    > Ru$$!$g +!gg!$g/ill #e started immediately after natural icing or raising superficial layer, so as to avoid a ne!free-ing it #efore digging and especially #efore the casting of foundations.

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