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IS 7320 (1974): Specification for concrete slump testapparatus [CED 2: Cement and Concrete]
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Gr 2 August 1974
IS : 7320 -1974( Reaffirmed 1999)
Indian Standard (Reaffirmed 2008)
SPECIFICATION FORCONCRETE SLUMP TEST APPARATUS
(Fourth Reprint NOVEMBER 2000)
UDC 666.972 : 620.192.2.05
Copyright 1974
BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
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IS I 7320 - 1974
Indian StandardSPECIFICATION FOR
CONCRETE SLUMP TEST APPARATUS
Cement and Concrete Sectional Committee, BDC 2
ChairmanDBH. C. VJ8VEBVARAYA
RepresentingCement Research Institute of India, New Delhi
MtmhnsDR. A. S. BHADURJ
SURI E. K. RAMACHANDRAN( Atumau )
SunI A. K. CUATTERJI
National Test House, Calcutta
Central Building Research InstituteRoorkee
(CSIR ),
S. B. Jo~hi & Co Ltd, BombayDirectorate General of Supplies & Disposals
DR S. S. REII8! ( Alternate )D E PUT Y CnIEF ENOINEER Public Works Department, Government of Tamil
( BUILDINGS) NaduDEPUTY CIUEF ENOINEER
( IltRIGATION & DESIONS)(Alternate)
DIREcTon Central Road Research Institute (CSIR), New DelhiDn R. K. GHOSH ( Alternate)
DIRECTOR ( CSMRS) Central Water & Power Commission, New DelhiDEPUTY DIRECTOR ( CSMRS )
( Alternate )SHIn K. II. GANGWAL lIyderabad Asbestos Cement Products Ltd.
HvdcrabadSURI K. C. GH08AL Alokudyog Services Ltd, New Delhi
Sum A. K. BISWAS ( Alt,rnale)DR R. K. Gnosn Indian Roads Congress, New DelhiBRIG HARISH CHANDRA Eng ineer-in-Chief ts Branch, Army Headquarters
SHRI G. R. MIRCRANUANI ( Alternate )DR R. R. l-IATTIANGADI Associated Cement Companies Ltd, Bombay
SHRI P. J. JAUUS ( Alttmtd, )On IQBAL ALI Enginecring Research Laboratories, HyderabadJOINT DIRECTOR STANDARDS Research, Designs & Standards Organization.
( B & S ) LucknowDEPUTY DIRF;OTon STANDARDS
( B & S) i Altemate )SHRI S. B. JOSHISURY M. T. KANSB
( Continued 011'tJl' 2 )
(i) CoP),ighl 1974IH lRI:,t\ll ()J: INI)IAN STANI)AKI>S
T'his publication is protected under t hc Indian Copv7i.l!hi Act ( XIV of 1957 ) andreproduction in whole or in pan by any means except with written pr-rm ission of thepublisher shall be deemed to be an infringement of (:oP\ ri~ht under t he said Act.
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'IS: 7320 - 1974
( Continued from page 1 )Members
SHU,I s. L. KATHunlASHRI S. R. Kur... KARNISUU.1 M. A. Ml':HTASHUI O. MUTHACIlEN
SUPERINTENDINO ENGINEER,2NO CIRCLl~ ( ALternt;:: )
SHUI ERACH A. ~ADIIt~HAltSnnr K. K. NAMnl:\lt
I}ROF G. S. RAMASWAMY
R,p"s,ntingRoads Wing, Ministry of Shipping & Transport
~1. N. Dastur & Co ( Private) Ltd, CalcuttaConcrete Association of India, BombayCentral Public Works Department
Institution of Engineers ( India ), CalcuttaIn personal capacity ((Ramanalaya' 11 First Crescent
Park Road, Gandhinagar I Adyar, Madras)Si ructura l Engineering Research Centre (CSIR) I
Rooi keeDn. N. S. nHAL ( Alternate J
[)R A. V. R. RAO Nat ional Build ings Organization, New DelhiSHin K. S. SItINIVASAN ( Altemat )
SHIH rL S. M. Rx o (;cological Sur\'('y of India, NagpurSun: T. N. S. RAO {;atntnon India Ltd, Bombay
SUUJ S. R. PINHElnn i Alternate )SEORF;TAHY Ci-nt ral Board of Irr iga t ion & Power, New Delhi
DEPUTY Sf:CItE'rAIlY (I) (Alie,1lutf )SUR} R. P. SH.'\ItMA Irrigation & Power Research Institute, Amritsar
SUH.I MOHJNDEH. S,NGH ( Alternate)SHUI (~. B. SINon Hindust an Housing Factory Ltd, New Delhi
SHIU C. L. KA8LI\VAL ( Alternate )SHit' .1. S. SINOlfOTA Beas Designs Organization, Nangal Township
SHRI T. C. (]A RO ( Alternate)SURY R. K. SINHA Indian Bureau of Mines, NagpurSHHI K. A. SUURA1\IANIAM India Cements Ltd, Madras
SHRI P. S. RAMACHANDRAN ( Alternate)SHltI L. SWAHOOP Daltnia Cement ( Bharat ) Ltd, New Delhi
SURf A. V. RAMAN A ( Altfrnate)SHRI I). AJITHA SIMllA, Director General, lSI ( Ex-oJlicio Member )
Dirr-cror ( Civ Engg )
SecretarySURI Y. R.. TAN1:JA
r)cruty Director ( Civ Engg ), lSI
Instruments for Cement and Concrete Testing Subcommittee, BDC 2 : 10
ConuenerDR IQBAL AT..I Engineering Research I .abora t or ics, I Iydcraba d
MembersPROF B. M. AnUJA Indian Inst it ut of Terhnologv, New DelhiLALA G. C. DAR National T~~t House, CakullaSHRt T. P. EKAMRARAM Highways Res-arch Station, MadrasDR R. K. GHOSH Central R.oad Research Inst iiute ( CSIR ), New n-n.:
SUR! K. L. Srerrn ( Alternate )( Continued 011 page B )
2
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AMENDMENT NO. 1 MARCH 1984TO
15:7320-1974 SPECIFICATION FOR CONCRETESLUMP TEST APPARTUS
A1terati ons_..... -..-..-, ...... ~
(Pags 3 j cZause 2.1~ line 2) - Substitute'tamping bar' for 'tamping rOd'.
(Page 4, clause 4~ TitZe) - Substi tute 'TAMPINGBAR t for 'TAMPING ROD'.
(Page 4, clause 4.1) - Substitute the followingfor the existing matter:
'4.1 The tamping bar shall be a steel bar 16 mm ~idiameter, 600 mm long with a rounded working e.nd'
(Page 7, cLause 5.1, Zine 2) - Substitute 'bar'for 'rod t
(BDC 2)
Printed at New India Priuting Press. Khurja. India
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IS : 7320 - 1974
Indian StandardSPECIFICATION FOR
CONCRETE SLUMP TEST APPARATUS
o. F 0 }{ E W 0 R D0.1 This Indian Standard was a: loptcd by the Indian StandardsInstitution on 21 February I97L } , after the draft finalized by the Cementand Concrete Sectional Committee had been approved by the CivilEngineering Division Council.
0.2 The Indian Standards Institution has already published a series ofstandards on methods of testing cement and concrete. It has beenrecognized that reliable and inter comparable test results can be obtainedonly with standard testing equipment capable of giving the desired levelof accuracy. The Sectional Committee has, therefore, decided to bringout a series of specifications covering the requirements of equipmentused for testing cement and concrete, to encourage its development andmanufacture in the country.
0.3 For the purpose of deciding whether a particular requirement of thisstandard is complied with, the final value, observed or calculated,expressing the result of a test or analysis, shall be rounded off inaccordance with IS: 2-1960*. The number of significant places r et aincdin the rounded off value should be the same as that of the specifiedvalue in this standard.
1. SCOPE1.1 This standard covers the rcquircment s of the apparatus used fordetermining the slump of fresh concrete as ~l measure of its consistency.
2. APP .&\RATUS2.1 'Fhe apparatus shall consist of a mould for the test spccrrncn and atamping rod.
3. MOULD3.1 Shape and Dimensions - The mould for the test specimen shall bein the form of the frustum of a cone as shown in Fig. I or 2 and internaldimensions as given in Table I.
Rules for rounding off numerical values ( revised).
3
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III 7320 1.74
TABLE 1 INTERNAL DIMENSIONS OF MOULD( Clawe 3.1 )
Sr. DJrrAILa DIMENSION TOLERANOE (SI' NO'I's)No. mm mm( I ) (2 ) (3) (4)
i) Bottom diameter 200 +3- 15
ii) Top diameter 100 +3- 15
W) Height 300 :I: 15NOT. - Diameter and height measured anywhere on the mould shall not differ
(rom the Dominal dimension (that is 200. 100 and 300 mm) by more than thelpecified tolerance.
3.1.1 Where no tolerance has been specified for a particular dimension,it will mean that reference is being made to the nominal dimension.'.2 Materlal- The mould shall be made of galvanized iron sheet orany other suitable metal not readily attacked by cement paste; aluminium.hall not be used. The metal shall be at least 16 mm thick.'.3 Coa_ructlon - The mould may be constructed either with orwithout a seam. When a seam is provided, the seam shall be essentiallyas shown in Fig. 2.
3.3.1 The top and bottom of the mould shall be open and parallel to'each other and at right angles to the axis of the cone. The internalsurface of the mould shall be smooth and shall be free from dents andprojections, such as protruding rivets.
3.3.2 The mould shall be provided with foot pieces and handles tofacilitate lifting it from the moulded concrete test specimen. The shapeand dimensions of the foot pieces and handles may be as shown in Fig. 1and 2. Attachments shall be riveted, welded or brazed to the mould.Any rivet used in the construction of the mould shall be countersunk onthe inside of the cone.
NOT. - A mould which clamps to a non-absorbent bale plate or an apparatus witha luitable guide attachment (or measuring height of the moulded concrete may also beaccepted provided it otherwise conforms to the requirement. of the lpecification.
4. TAMPING RODf.l The tamping rod shall be a round straight steel rod, 16 mmdiameter and 600 mm long. The tamping end of rod shall be roundedto a hemispherical tip, the diameter of which shall be 16 mm.
4
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IS I 7320 - 1974
1-6 mm MINTHlCK
1.6 mmTHICK
All diMfOSioDi in miUimetres.
Flo. 1 MOULD ( SEAKLESI ) FOR SLUMP TEST OP CONCRETE
5
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IS I 7320 1974
100+ 3-1-5
1.6 mmTHICK
1.6mmMIN THICK
~'2L_-"'~--2...JOL.:~.l+J:.J+ l--IO-~--=p--...-..... 1.6l----- -1.5
300~ 15
All dimension. in millimetres.
Flo. 2 A MOULD (WITH SEAM) FOR SLUMP TEST OF CONCRETE
6
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IS I 7320 197~5. MARKING5.1 The following information shan be clearly and indelibly marked onthe mould and the rod in a way that it does not interfere with theperformance of this apparatus:
a) Name of manufacturer or his registered trade-mark or both, andb) Date of manufacture.
5.1.1 The apparatus may also be marked with the Standard Mark.
5.1.2 The use of the Standard Mark is governed by the provisions of Bureau ofIndian Standards Act, 1986 and the Rules and Regulations made thereunder. Thedetails ofconditions under which the licence for the Standard Mark ITIay be grantedto manufacturers or producers may be obtained from the Bureau of Indian Standards.
..,
I
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MmtbnsSmn H. K. GUBA
18I 7320 1974
All India Instruments Manufacturen ac DealersAssociation, Bombay
SURI V. K. VA8UDEVAN ( AIII,an" )SUBt P. J. JAoua Associated Cement Companies Ltd, Bombay
SUBl D. A. WADIA (AlImuJII )SUBI M. R. J08BI Ministry of Defence, R &. D
SUBI K. A. SIBASKAR (Altmaal,)SaRI V. KANNAN Cement Research Institute of India, New Delhi
SURI M. V. RANGA RAO ( Altmuzl, )hoI' C. K. RAKESH Indian Institute of Technolcgy, Bombay
DR R. S. AYYAR ( Alt"nat, )SHBl P. V. SUBBA RAo Andhra Scientific Co Ltd, Maaulipatam
SUBI Y. S. NARAYANA ( Altmult, )DB S. S. REBS1 Central Building Research Institute (CSIR), Roorkee
SURI J. P. KAU8BlsH ( AII,mal,)SURI H. C. VERMA Associated Instrument Manufacturers (India) Pvt
Ltd, New DelhiSBJ\I A. V. SHASTRI ( Alt,mill, )
8
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