Krystol® Magazine �

Kryst l®

Leaders in Integral Crystalline Waterproofing

®

www.kryton.comMagazine

Volume 14 | Issue 1

NEW:Hydrostop Restore & Protect System to extend the life of your concrete

PLUS:Spotlight on Mexico

Tips to protect your concrete joints

Restoring the Historic

Royal Mills

®

WE KNOW WHAT WORKSStop using unreliable membranes to waterproof your concrete. Since 1973 Kryton has helped architects, engineers and builders create dry, waterproof concrete using Krystol technology.

Our waterproofing admixture, KIM®, is faster, more reliable and costs 25% less than using traditional waterproofing systems. KIM is backed by the industry’s longest warranty.

For more information on the longest standing crystalline waterproofing admixture jobs in the world, visit us online at www.kryton.com or call us at 1-800-267-8280 or +1-604-324-8280.

®

At the Lab. In the Field. By Your Side.

Concrete Waterproofing that Works!Concrete Waterproofing that Works!

Krystol® Magazine �

Contents4 RestoringtheHistoricRoyalMills

6 EffectiveCrackPrevention,ControlandRepair

9 CEOColumn

10 ProtectingYourConcreteJoints

12 KrytonNews—KrytonLaunchesCompleteProduct SystemtoRestoreandProtectConcreteStructures

13 AskaKrytonExpert

14 KrytoninMexicoKrystol® Magazine is printed twice a year by Kryton International Inc.1645 East Kent AvenueVancouver, BC V5P 2S8Canadawww.kryton.com

For information about this publication or about Kryton International Inc., write to the above address, phone 604-324-8280 or 1-800-267-8280, or email info@kryton.com.

Copyright © 2011 Kryton International Inc. All rights reserved.

Editors/ContributorsJillian WorkKari YuersKevin YuersAlex Emlyn Jeff BowmanSheila Dong

Design/ProductionYvonne Lee

Printed in Canada by Rebel Communications Group

6

10

Volume 14 | Issue 1

www.kryton.com�

Restoring the Historic Royal Mills

Restoring the Historic Royal Mills

Builtin1890,RoyalMillsnearProvidence,RhodeIsland,USA,onceoperatedoneoftheworld’sbusiesthydro-poweredcottonmills.Infact,itwasthesignaturecottonmillfortheclothingcompany,FruitoftheLoom.Morethan100yearsafteritsheyday,themillstoodvacantandneglectedonthebanksofthePawtuxetRiver.

In2004,developerStrueverBros.Eccles&Rousepurchasedthemill,withtheplantoconvertthedegradingbuildingintotrendyone-andtwo-bedroomandloft-styleapartmentswithpublicandretailspacesaswellasacompletelyrevivedriverfrontwithpublicwalkingpaths.The250residentialsuiteswouldfeaturetheoriginalsoaringceilings,exposedbrick,over-sizedwindowsandexposedwoodbeams.

Butmakingthebuildinghabitablewasnotasimpletask.Amajorfirein1919,morethanacenturyofharshwetweather,heavyindustrialuseandadecadeofneglecthadtakenitstoll.Royal

Millsrequiredextensiverenovation,restorationandwaterproofing.

Thedeveloperinvitedalocaldistributorofintegralcrystallinewaterproofingproducts–NewEnglandDryConcrete–toconductanextensivestudyassessing

thevariousconditionsthatplaguedtherestoration.Thecompanyfoundseverewaterintrusion,includingwetstoneandbrick,insidesomeapartmentsaswellaspoorconditionsinmanysub-gradesuites.Inall,15percentofthesuiteshadwaterdamageduetoleaksinthefoundation,windowsorwalls.Repairswouldbeneededtotheinteriorandexteriormortarwork,floorslabsrequiredreplacementandtheexteriorneededwaterproofingoverall.

Itwasasignificantprojectfortheteamchargedwithwaterproofingthemill.Withnopossibilityofexcavatingaroundtheexteriorofthebuildingbecauseofitsproximitytotheriver,thedeveloperneededtobeconfidentthewaterproofingsystemusedwouldkeepthebuildingdryfortherestofitslife.Itbecameclearthebestwaytodealwiththeprojectwouldbetouseanintegralsystemthatwouldbecomepartoftheconcretematrixandwaterproofthestructurefromtheinsideout.ThedevelopersupportedNewEnglandDryConcrete’suseofKrytonInternationalInc’srange

More than 1,500 window sills and lintels were repaired in this building with Kryton products.

Construction taking place on exterior of Royal Mills building.

Krystol® Magazine �

ofintegralcrystallinewaterproofingproducts.Inadditiontoprovidingcomprehensivewaterproofing,thiswasalsothegreenestchoice.

FortheRoyalMillsteam,sustainabilitywasanimportantfactor.Theprojectincludedrefinishedoriginalflooringinmostofthebuildingand50percentofallconstructiondebriswasreusedinsignageandotherpublicareas.Usingintegralcrystallinewaterproofingfurtheredthedeveloper’sgreencommitmentsbyextendingtheserviceablelifeoftheconcretestructure,reducingjobsitewasteandenablingthefuturerecyclingofconcretematerials.Italsoeliminatesvolatileorganiccompoundstypicallyassociatedwithtraditionalmembraneapplicationanditdoesnotrelyontarorpetroleumbasedmaterials.

NewEnglandDryConcretefirstusedKryton’sKrystolInternalMembrane(KIM)duringthereplacementconstructionofthestructure’sfloorslabsandelevatorpits.Itwasalsoaddedtothemortarusedtorepairthehistoricstoneveneer.KIM’sproprietarychemicalsreactwithconcreteandwatertoformmillionsofmicroscopiccrystals.Thecrystalsgrowandfillthecapillaries,poresandcracksinconcrete.Overtime,ifwaterentersthestructure,thecrystalsreactivateandgrow,blockingwaterflow.Thiscontinuouswaterproofingabilityensuresthestructureremainsdryoverthelongterm.

Kryton’sKrystolCrackRepairSystemwasalsousedextensivelyontheproject.Theadvancedcrackrepairsystemprovidesbothphysicalandchemicalwaterproofingbarriers.Itwasusedonmorethan1,000linearfeetofcracks.Twoofthesystem’sproducts,waterproofinggroutKrystolBari-Coteandrapid-settinghydrauliccementKrystolPlug,wereusedtowaterproofmorethan1,500windowsillsandlintels.Athirdproductinthesystem,KrystolT1–acementitious

brush-appliedtreatment–wasusedontheinteriorwallsthatwerelocatedbelowtheriverlevel.BecauseKrystolT1usesKryton’scrystallineformula,itcanresistupto460feetofheadpressureandisimpervioustowaterexposure,saltsorothercontaminants.

Finally,250,000squarefeettheoriginalstoneexteriorwassealedwithHydrostopSealer.HydrostopSealerisapolymerstate-of-the-artwaterrepellentsealerthatmaintainstheoriginalappearanceofastructure.ForthehistoricRoyalMillsbuilding,thiswasakeybenefit.

Thewaterproofingworktookmorethansixmonthstocomplete.Theprojectwasfinishedaheadofscheduleinmid-2009andwasonbudget.Equallyimportant,thedeveloperhadpeaceofmindbecausethesinglesourcewaterproofingsystemwascompletelywarrantedfromthemanufacturer.

RoyalMillsisnowlistedontheU.S.NationalHistoricRegisterandwasrecentlynamedthe2010NewEnglandInternationalConcreteRepairInstituteProjectoftheYear.Onceaderelicthomagetotimegoneby,todayitstandsasanelegant,historicanddrydevelopmentblendingoldstonewallswithmodernluxury.

Crews work to apply Hydrostop Sealer to seal and protect the exterior of the building.

Using Kryton’s Hydrostop Sealer allowed the team to maintain the original appearance of the structure.

www.kryton.com�

Concreteisamixtureofaggregate,cementandwater.Thewatercombineswithcementtocreatethegluethatholdsitalltogether.Butthereisnearlyalwaysmorewateraddedthanisneededtohydratethecement–usuallyabouttwiceasmuch.Thisisbecauseextrawaterisnecessarytomaketheconcretemixtureworkableduringplacing,consolidationorpumping.Someofthisadditionalwater,alsoknownaswaterofconvenience,

bleedsoutofthewetconcretewhileit’sstillsoft.Theremainingwaterevaporatesfromtheconcreteoverthenextseveralweeksandmonths.Astheconcretedries,itshrinksandtheresultingtensilestressresultsincracks.

Therearethreethingsthatyoucandoaboutcracks:prevent,controlorrepairthem.

Prevention Methods

Youcannotexpecttopreventallcracking;butitispossibletosignificantlyreducethenumberofcracksbytakingafewimportantmeasures.

Thenumberonewaytopreventconcretecrackingistoreducetheamountofwateradded.Lesswatermixedintotheconcretemeanstherewillbelesswatertoleavetheconcretewhenitdriesandasaresult,lessshrinkagewilloccur.Watershould

Effective Crack Prevention, Control and Repair

A pool and foundation that required repair in Mexico.

bereducedtotheminimumamountrequiredtostillallowproperplacementandcompactionoftheconcrete.Usingchemicalwaterreducerswillallowquitealargereductioninwaterandstillprovideworkableconcrete.Thegradationofyouraggregateshasaninfluenceaswellbecausefineaggregatesdemandsignificantlymorewaterthancoarseaggregates.Becautiousofconcretemixeswithtoomuchsandorahighcementcontentthatwilldemandmorewater.Morecementmaymeanhigherstrength,butitmayalsoresultinmoreshrinkageandadditionalcracks.Anexperiencedandknowledgeableconcretesuppliercandeliveryouawellproportionedmixthatwillminimizeshrinkage.

Heatgeneratedbythehardeningconcrete(heatofhydration)willcauseconcretetoexpandslightly.Thiscanleadtocrackingwhentheconcretecoolsandcontractsafterithashardened.Massconcreteandhotweatherwillcontributetothis

A leaking crack in a fish tank in Arizona, United States.

Krystol® Magazine �

produceafoamthatquicklysetswithinthecracktoblockwaterflow.Urethanefoaminjectionwillnormallyremainflexibleandtolerateaslightamountofmovementintheconcrete;however,thisflexibilitydeteriorateswithtime.

Aninjectionproductthatshouldneverbeusedforwaterproofingisepoxy.Epoxyinjectionisdesignedandusedforrestoringthestrengthandintegrityofcrackedconcretestructuralelements.Thesecracksmustberelativelydryfortheepoxytoachieveadhesion.Epoxywillnotdisplaceorreactwithwaterandthereforeislargelyineffectiveatwaterproofingaleakingcrack.

Allinjectionproductssufferfromthedisadvantageofbeingsomewhathitandmissbecauseboththedrillingoftheholesandinjectionofthematerialisdoneblind.Althoughthesuccessratecanbehigh,achieving100percenteffectivenessisextremelydifficult.Duetothis,waterproofingandcreatingacompletelydrystructureisequallychallengingandunreliable.Attemptingtore-injectmissedandstillleakingareascanalsobeverydifficult.

Theonlywaytomakecertainaleakingcrackismadecompletelywaterproofistoopenthecrackandrepairitdirectly.

condition.Controllingheatofhydrationcanhelptopreventthesethermalshrinkagecracksbyreducingtheinitialthermalexpansion.Youcanalsoreduceheatofhydrationbyusinglow-heat-of-hydrationcementorsupplementarycementingmaterialssuchasflyashandslag.Finally,ifyoustarttheconcreteatalowerinitialtemperaturebyusingchilledwaterandaggregates,youmaybebetterabletocontrolthecracking.

Aftertheconcretehashardened,theless-water-is-betterruleisreversed.Freshlyhardenedconcretemustbeprotectedfromdryingouttooquickly.Thestrengtheningprocessrequiresmoistureandiftheconcretedriesouttoosoontheconcretewillbeweakandlikelycrack.Thecementhydrationprocesscontinueslongafterhardening,butthemostcriticaltimeisinthefirstseveraldays.Properwetcuringorothermeasurestopreventmoistureevaporationareessentialduringthistime.

Controlling Cracking

Controllingcracksisaccomplishedbydesigningyourstructureinawaythatpredeterminesthelocationandsize(width)ofeachcrack.Thelocationcanbepredeterminedbycreatingintentionalplanesofweaknesswithintheconcrete.Theselocationsarecalledcontrolorcontractionjoints.Byencouragingacracktoformatthatspecificlocation,theyhelptopreventrandomcracking,whichcanbemoredifficulttorepair.Aproperlyformedcontroljointcaneasilybesealedlaterusinganappropriatewaterproofingproduct.Ifcracksdooccur

betweenthecontroljoints,theirsizeorwidthwillbesmaller.

Cracksizecanfurtherbereducedwithproperandadequatereinforcingsteeldesign.Goodreinforcementwillresultincracksthatareverysmall.Thesesmallcrackswillallowcrystallinewaterproofingadmixturestoself-sealthecrackswithoutanyneedforrepairwork.Asanaddedbonus,theconcreteandstructurewillbemuchstronger.

Repairing Cracks

Ifyoureffortsatpreventionandcontrolareunsuccessful,youmaybefacedwithaleakingcrackthatneedstoberepaired.Themostcommonrepairmethodistoinjectaproductintothecrackinanattempttofillitandmakethecrackwaterproof.Typically,aseriesofholesaredrilledalongthecracklengthsothattheyintersectthecrackbeneaththesurface.Aportistheninsertedintoeachholeandaproductispumpedintothecrack.Commonproductsincludeslurrymixturesofcementand/orclaywithwater,whichcanbecosteffectiveforsituationsofminimalwaterflowandlow-pressure.Formorechallengingrepairs,hydrophilicurethaneproductsarerecommended.Thesereactwithwaterto

This control joint creates a purposeful weakness in the concrete so that straight line cracking will occur.

This concrete mix used the proper proportion of cement, water and aggregates to minimize shrinkage and cracking.

www.kryton.com�

Crackscanbequicklychiseledopenusinganelectricchippinghammer.Themostcommonrepairmethodinvolveschiselingtheentirelengthofthecracktocreateadeepandnarrowchase.Thechaseisthenfilledwithhydraulicgroutandpreferablywithacrystallinewaterproofingsystem.

Crystallinewaterproofingsystemsprovidebothashort-termphysicalbarriertowaterandlong-termchemicalwaterproofingthroughthegrowthofpore-blockingcrystals.Crystallinewaterproofingisroughlyequaltoinjectionintheskillandtimerequired,butissignificantlycheaperandfarmorereliable.Thelimitationofthisrepairmethodisthatitisnotintendedforcracksorjointsexperiencingmovement.Withqualityproductsandpropertraining,evenbadlycrackedandleakingconcretecanbesuccessfullyrepairedtoadusty-drystate.Becauserepairsareinconvenientandoftenexpensive,yourbestcrackrepairstrategyistofocusonpreventionandcontrol.

Failed epoxy injection repair

Filling a chiseled chase with crystalline waterproofing.

“In my five year association with Kryton, White Van Services has

been able to expand its market share with a product that is reliable, consistent, and comes

with outstanding customer support. We are able to use Kryton’s Crack

Repair System with minimal disturbance

to our customers and their surroundings. We

have found no other product with the ease of

use, quality, finish and longevity. Kryton has

always provided us with a product that we can

associate our name with.”

Al Polonuk, White Van Services Ltd.

Krystol® Magazine �

Socialmediacontinuestochangehowbusinessescommunicatewiththeircustomers.Theconcreteconstructionindustryisnoexception.SocialtechnologiessuchasmicrobloggingonTwitterornetworkingonLinkedInallowcompaniestoreachtheirstakeholdersdirectlyandinrealtime.Inadditiontoinstantdigitalconnections,newnetworksofinfluencerscanbediscoveredandinvitedtoparticipateinindustrydialogue.Thesocialmediarevolutionenablesunprecedentedinformationsharingopportunities.

ThoughtleadershipandeducationhavealwaysbeenimportanttoKryton.We’vebeenworkinghardtopioneernewwaysofsharingourexperienceaboutconcreteandwaterproofing-relatedissuesbyusingsomeofthemostpopularWeb2.0tools.

Kryton’sblogConcrete Thoughtswaslaunchedinmid-Marchofthisyear.Itwasdevelopedtobeaforumwhereourexpertsintheconcretewaterproofing

businesscouldsharetheirthoughts,ideasandopinionswithcustomersandconcreteindustrystakeholders.Theblogaddressesawidevarietyoftopicsrelatedtoissuessurroundingthedurability,longevityandwaterproofingofconcrete.RegularpostingsalsoincludeindustryregulationsinNorthAmerica,suchasthedisposalofflyashandchangestoLEEDcertification.

TotalkwithourindustrypeersandcustomersweuseTwitter.Wejoinconversationsaboutconcrete;weoffertipsonwaterproofing,orprovidelinkstomoreresources.

AcrowningachievementformewasmyforayontotheSocialWebduringtheAmericanConcreteInstitute(ACI)Conventionlastspring.Thankstoacrash

courseintweeting,Iwasabletojoinahandfulofindustryleaderswholive-tweetedfromtheconference.BytweetingfrommyBlackberry,Iwasabletoprovideliveminutesofthekeynotespeakersandkeeptheindustryup-to-speedontheconference.IagainlivetweetedfromtherecentACIFallConventioninPittsburgh.

IntegratingsocialmediastrategiesintoouroverallmarketingandpublicrelationsinitiativessetsKrytonapartfromourcompetitorsthathaveyettoengagewiththeircustomersonline.Ouractivepresenceonlinewillonlygrowinvalueasyoungconstructionindustryprofessionalsincreasinglymakeuseofsocialmediatolearnaboutthelatestadvances,trendsandideassurroundingconcretewaterproofing.Iinviteyoutojoinusonlineandparticipateintheindustryconversation.

CEO Column

Kryton’s President & CEO Kari Yuers

Follow us on Twitter @KrytonIntl

Talk to us on our blog – Concrete Thoughts www.waterproofconcrete.com

Connect with us on LinkedIn http://www.linkedin.com/companies/kryton-international-inc

Nervous about entering the conversation on Twitter?

Start by listening to what’s being said. Go to http://search.twitter.com and search keywords or phrases based on current issues in the industry.

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Ithasbeensaidthattherearetwotypesofconcrete–concretethathascrackedandconcretethatisabouttocrack.Earlyinitslife,concretedries,shrinksandquitecommonlycracks.Inaddition,fluctuationsintemperatureandmoisturelevelscauseconcretetoshrinkandexpandthroughoutitslife,eventuallyleadingtocracking.Differentappliedloadweightscancauseshearorbending,whichincreasesthelikelihoodofbreaks.Theresultingcracksrepresentaneasypathforwaterandchemicalcontaminantstoentertheconcreteandcorrodethesteelreinforcementinside.Thisiswhypreventivemeasures,suchasproperjointing,areacrucialpartoftheconstructionprocess.

Jointsarepre-plannedcracks.Unlikerandomcracksthatcanleadtoconcretedeterioration,jointsfortifystructuresbycontrollingandminimizingcracking.

Types of Joints

Acrack-inducementjointiscommonlyreferredtoasacontrolorcontractionjoint.Thesejointscreateapurposefulweaknessintheconcretesothatstraightlinecrackingwilloccuratthatdesired,pre-plannedspot.Crack-inducementjointsaremostoftenusedinsidewalks,driveways,pavements,floorsandwalls.

Anisolationorexpansionjointseparatesconcreteslabsfromstructuralelementssuchaswalls,footingsorcolumns.Theyallowtheslabsandtouchingsurfacestomovewithoutcausingcracks.Thesejointsaretypicallyusedwhenseparatingdrivewaysandpatiosfromsidewalks,garageslabsorstairs.

Constructionjoints,alsocalledcoldjoints,separatesectionsofconcretethathavebeenplacedatdifferenttimes.Theyprovidestoppingplacesduringconstructionandareoftenreferredto

asjointsthat“occurattheendofaday’swork.”Thesejointscanalignwithorfunctionascrack-inducementorisolationjoints.

Addressing Joint Vulnerability

Forjointstobeeffectiveinmitigatinguncontrolledcracks,theymustbe

Protecting Your Concrete Joints Worker treats concrete joints with the Krystol Waterstop System.

Bentonite waterproofing membrane that requires extra care and labour during application.

Krystol® Magazine ��

correctlydesignedandbuilt.Jointdepthsshouldbeappropriateforthethicknessoftheconcrete.Forexample,acrack-inducementjointshouldhaveadepththatisapproximatelyone-quarteroftheconcrete’sthicknesswhileisolationjointsshouldextendthefulldepthoftheslab.Jointsshouldalsobespacednofurtherapartthan30timestheconcretethickness.Propertoolsshouldbeusedinformingjoints,suchassaws,hand-finishingtoolsorpre-moldedstrips.Therearedozensofconsiderationsthatshouldbefollowedinordertoproducereliableandsuccessfuljoints.Butthereisonethatisthemostimportantofthemall:waterproofing.

Whilejointsgoalongwayinmakingconcretestrongeroverthelongrun,theyalsorepresentthemostvulnerablepartofthestructure.Thechallengeliesintheintrinsicdesignofjoints–thephysicalseparationbetweenconcreteslabscreatesanexposedareawherewateringresswillhappen.Soit’snotamatterofifthejointwillleak,butwhen.

Leakingconcretejointscannotonlyresultinexpensiverepairsandinconvenientrenovations,butcanalsoleadtoseverehealthhazards.Frommoldandfungusgrowthtriggeredbyincomingmoisturetowaterbornecontaminantsenteringthestructure,leakingjointscanbeunsafeforstructuresandthepeoplethatusethem.

Joint Waterproofing Options

Traditionally,waterstopsystemshavebeenusedtowaterproofjoints.Theyactasphysicalbarrierstoblockwaterpenetration.

Themostcommon,PVC,usesflatstripsofhighqualitypolyvinylchloride(PVC)embeddedinbothsidesofajointtocreateawatertightseal.PVCwaterstopsarereadilyavailableindifferentthicknesses,widthsandsizesandsomePVCmanufacturersofferchemicaloroilresistantproperties.Theseproductscanbeinstalledinwetconditionsandhavealonglifespan,unlikemanyotherwaterstopsystems.However,PVCwaterstopsposethreemainchallenges:they’retimeconsumingtoinstall,canbecomeeasilydamagedduringconcretepouringandiftheyaredamaged,thereisvirtuallynowaytotelluntilthejointstartstoleak.

Bentoniteisaswellableclaythatisalsofrequentlyusedtowaterproofjoints.Itisgluedornailedinstripsintojointsandexpandsupto16timesinsizewhenincontactwithwater.Theexpansionformsacompressionsealthatkeepswateroutofjoints.Onecommondeterrentfromusingbentoniteisthatitcandryoutanddeteriorateeasilybecausetheclayisanaturalmaterial.Additionally,itmustbekeptcompletelydrypriortoinstallationoritwillexpandprematurely.Bentonitesystemsarealsoeasytodisplaceduringpouringandrequireextracareandlabourduringapplication.

Anotherjointwaterprooferthatissimilartobentoniteisaurethanewaterstop.Thesespongy,hydrophiliccompoundsswelluptothreeandahalftimestheiroriginalvolumewhenincontactwithwater.Buturethanewaterstopspossessthesamedrawbacksasbentonitesystems–theydryup,crackanddeteriorate

overtime;theyareatriskofprematureexpansioniftheyareexposedtomoisturetooearly;and,theyrequireproperplacementandextracareduringpouring.

Metallicwaterstopsaremostfrequentlyusedonprojectswhereextrastrengthisrequiredorwhenchemicalexposureislikely.Theyaremadeofsteel,copper,bronzeorleadandareembeddedinanuprightpositionacrossjointstoformacontinuouswaterbarrier.Themaindrawbacktothesesystemsistheircost.Becausetheyaredesignedforspecializedapplications,thematerialandlabourcostsareextremelyhigh.

Crystallinewaterstopsblockthemovementofwaterthroughjointsbygrowingmillionsofcrystalswithintheconcretematrix.Whenincontactwithwater,thecrystalsgrowandexpand,fillingthejoints,capillariesandmicro-cracksoftheconcrete.Becauseofthetechnology’suniqueabilitytoself-sealnewminorcracksevenyearsaftertheinitialapplication,crystallinewaterstopsprovidealongtermsolutionforjointwaterproofing.Asanaffordable,effectiveandmorereliablealternativetootherwaterstopsystems,crystallinejointwaterproofingsystemsaregrowinginpopularity.

Whileconcretecrackingwillneverbeeliminated,itcanbecontrolledandmanagedwitheffectiveandproperjointingpractices.Oneofthebestwaystoprotectyourstructureoverthelongrunistoinvestinasoundandreliablejointwaterproofingsystem.

The crystalline system provides both a physical (red) and chemical (yellow) barrier to water.

A PVC joint with cracking.

www.kryton.com�2

Kryton International Inc. Launches Complete Product System to

Restore and Protect Concrete Structures

Kryton News

government-supportedinfrastructureimprovementorrestorationprojects.

“Overthelastyear,governmentsaroundtheworldhavebeenintroducingincentiveprogramstobuildandrepairinfrastructureasawayofstimulatinglocaleconomies,”explainsYuers.“We

wantedtodeveloparestorationandprotectionsystemthatwouldmakeengineers’liveseasierastheytackledtheseprojects.”

Inadditiontogivingagingconcreteinfrastructureanewleaseonlife,theHydrostopSystemmakeslifeeasierformaintenanceengineersandspecifiersbyofferingacompleteandcompatiblesystemthathasbeendevelopedtoworkflawlesslytogether.There’snoneedtopiecetogetherasolutionbasedonvariousproducts.Andthere’snoneedtoresolveconflictingapplicationinstructions,whichoftenoccurswhendifferentmanufacturers’productsareused.

TheHydrostopRestore&ProtectSystemcomesinstandardconcretegrayorspecialorderwhitecolorandisavailableworldwidethroughKryton’sauthorizeddealers.

Hydrostophasbecomeawell-knownnameovermanyyearsasKryton’swaterrepellentsealer.OnSeptember1,2010,thetrustedHydrostopbrandwillbeexpandedtoincludetwonewHydrostopproducts:HydrostopGroutandHydrostopCoating.Together,thethreeproductsmakeupanew3-steprestorationandprotectionsystemforabovegradeconcretestructurescalledtheHydrostopRestore&ProtectSystem.TheHydrostopRestore&ProtectSystemgreatlyextendstheusefullifeofdeterioratingconcreteinfrastructureandbuildings,improvesoverallaestheticsandoffersamoreenvironmentallysustainablealternativetototalreplacement.

Thefirststepinthesystemusesanon-shrinkwaterproofgrouttorepaircracksanddefectsattheconcretesurface.TheproductemploysKryton’soriginalcrystallinetechnologyandisnamedHydrostopGrout.Oncethesubstrateismadegood,theentireconcretesurfaceiscoatedwithapolymerized,cementitiousslurrycalledHydrostopCoating.Thislayerprovidesadurablebarrieragainstwaterandchemicalintrusionandimprovestheconcrete’soverallaesthetics.

Stepthreeistoimpartalong-lastingwaterrepellenteffecttothesurfaceusingahigh-qualityblendedsilane-siloxanesealercalledHydrostopSealer.

“Replacingaginginfrastructurecancostmillionsofdollarsandbeasignificant,unacceptabledisruptionto

youroperationsaswellastothegeneralpublic,”saysKevinYuers,VicePresidentofKryton.“TheHydrostopSystemistheidealsolution.Itmakesthebestuseofresources,moneyandtime.”

Yuersaddsthenewsystemwillbewelcomenewsforanyengineersinvolved,orwantingtobecomeinvolved,in

Hydrostop Restore & Protect System.

Kryton’s Hydrostop Sealer resists water and stains.

Krystol® Magazine ��

Ask a Kryton Expert!

Jeff Bowman, Head Chemist & Technical Services Representative

crystalsthatblocktheconcretepores.Integralsystemshavehydrophilic-likepropertiesinthattheysoakinthewaterinordertobuildimpermeabilityovertime.

Someintegralsystemsmayactuallyhaveincreasedabsorptionintheearlystagesasthewaterisbeingconsumedforthewaterproofingreaction.Asaresult,theconcretewillweighmoreafterbeingsubmergedinwater,producingaresultthatdoesn’tproperlyreflectwaterproofingability.

Themosteffectivewaytotestanintegralsystem’sabilitytoresistwaterpenetrationisthroughapermeabilitytest.Theseteststakeintoaccounthowintegralsystemsactuallywork.Theyallowyoutodeterminehowdeeplythewaterhaspenetratedandwhethercrystalgrowthhasstartedtooccur.

Keepingconcretewatertightisachallenge.Asaporousmaterial,concretecanallowwatertomigratethrough,corrodingsteelreinforcement,bringinginharmfulchemicalsandcreatinggenerallivabilityissues.Thisiswhymostconstructionindustryprofessionalsusesomesortofwaterproofingproducttoprotecttheirconcretestructures.

Sohowdoyouknowifyourwaterproofingproductactuallyworks?

Therearetwomethodscommonlyusedtodetermineifconcreteiswaterproof:absorptionandpermeability testing.

WeaskedJeffBowman,KrytonInternationalInc.’sheadchemistandtechnicalservicesrepresentativetoexplainthemaindifferencesbetweenthetestmethodsandhowbesttoeffectivelytestanintegralwaterproofingsystem’sabilitytoresistwaterpenetration.

Q: What’s the difference between absorption and permeability tests?

Absorptiontestsaresimpletoperformandcanbedonebyanymaterialslab.Thetestmeasurestheweightofwaterabsorbedintoaconcretespecimenovertimeasaresultofcapillaryabsorption,orwicking.AfulldescriptionofthetestmethodcanbefoundinASTMC1585orBSEN1881.

Absorptiontestsareusefulforconcreteundernon-hydrostaticconditions,suchasabovegroundconcretethatprimarilyneedsprotectionfromrain.Theyareapplicabletohydrophobicproducts,whicharedesignedtorepelwaterfromtheconcretesurface.

Permeabilitytestsrequirespecializedequipmentandcannotbedonebyalltestingagencies.Productsthatarerequiredtoresistwaterunderpressuremustbeevaluatedusingthistestingmethod.

DescribedindetailinBSEN12390-8andDIN1048-5,waterunderconstanthighpressureisappliedtoonefaceofaconcretesampleforaperiodof72hours.Whenthetestiscompleted,thespecimensaresplitopenandthedepthofwaterpenetrationismeasured.Thistestmethodisusefulforstructuressuchasbasements,tunnelsandwaterreservoirsbecauseitrecreatesthepressureconditionsthatthesestructuresaresubjectedtoinarealisticway.

Rememberthateachofthesetestmethodsarecomparativetests.Nomatterwhichmethodyouuse,besuretotestthewaterproofingagentagainstanidenticalplainconcretesample,usingthesameproportionsofcement,aggregatesandwater.

Q: What is the best way to test an integral system’s ability to resist water penetration?

Integralsystemsrelyonthegrowthofmicroscopiccrystalswithintheconcretetorenderitwaterproof.Whenincontactwithwater,chemicalsaddedtotheconcretereactandformmillionsofAbsorption test showing how much water

was absorbed into the concrete block.

Permeability test showing the depth of water penetration of three samples.

www.kryton.com��

ISSSTELEON Parking Garage, Monterrey

TheInsitutodeSeguridadYServiciosSocialesdelosTrabajadoresdelEstadodeNuevoLeon(ISSSTELEON)providessocialandsafetyservicestoworkersacrosstheMexicanstateofNuevoLeon.Whenitsnewbuildingwasconstructed,akeyconcernoftheStatewasprovidingastructurethatwouldbeassafeandreliableastheservicestheyprovide.Kryton’sproductwarrantywasthesellingfactorforbringingthecompanyonboard.Kryton’sKrystolInternalMembrane(KIM)wasusedonalltheconcreteslabsintheparkingstructuretominimizeshrinkageandcracking.TheprojectwassuccessfullycompletedinApril2010.

Edificio Tevo de Ucalli

EdificioTevodeUcalliisanofficebuildinglocatedinSanPedroGarzaGarcia.SanPedroisoneofMonterrey’smostaffluentsuburbs.Whenconstructionbeganin2008waterproofingwasaconcernforthedeveloper.ThedeveloperusedKIMonthesuspendedslabsofthebuildingandwasverypleasedthathewasabletosaveonemonthinconstructiontimebyincorporatingthewaterproofingrightintotheconcrete.Thebuildingwascompletedin2010.

further.By2012,theywantMexicotobecomeaninfrastructureleaderinLatinAmericaandby2030,theywantittoberanked20thontheWorldEconomicForum’sinfrastructureindex.

KrytonhasbeenpartofMexico’sgrowingconcreteindustryformorethan30years.Withcementandconcretepredictedtoremainthecountry’stopbuildingmaterials,Krytonwillcontinuetobeavaluablepartnerfortheindustry.

Conjunto Retama, Monterrey

InJanuary2010,KrytonwasbroughtonboardtowaterproofanapartmentswimmingpoolatRetama–anewresidentialdevelopmentcomposedoffourtowersoverlookingMonterrey,inNortheasternMexico.Thedevelopmentboastsavarietyofluxuryamenitiesincludingacentralgarden,gym,banquetroom,joggingtrackandtwoinfinity-edgeswimmingpools.Kryton’swarrantyprogramandabilitytoprovideon-sitesupervisionduringtheapplicationprocessprocessmadeitanattractivechoiceforthedeveloper.ByMarch2010,almost2,500kilogramsofKrystolInternalMembranehadbeenusedtowaterproofthepool–keepingthewatersafelyandsecurelyinthepoolforallresidentstoenjoy.

AccordingtotheU.S.DepartmentofCommerce,theMexicanconcreteconstructionindustryis“oneofthestrongest,mostefficientandmostcompetitiveintheworld.”Itcurrentlygeneratesmorethan20,000directand120,000indirectjobs;infrastructureandhousingalonerepresent90percentofthecountry’stotalconsumption.

TheMexicanadministrationwantstotakethatsuccesseven

Kryton in Mexico

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Ensenada International Terminal Grain Tunnel, Ensenada Baja California

TheEnsenadaInternationalTerminalisamaritimeterminalthathandlescargoandcontainersfromaroundtheworld.Itisalsoresponsibleforloading,receivingandstockpilinggrain.In2008,theEnsenadaPortAuthorityaddedabelowgradeconcretetunneltohouseabelttransportationsystemtotheterminalaswellasanewgrainsilotosupplementitsgrainloadingsystem.Duetotheterminal’slocationonthePacificCoast,withstandinghydrostaticpressureandkeepingtheconcrete–andgrain–drywasessential.Anywaterleakagecouldruinentirecontainersofgrain,costingthePortAuthoritythousandsofdollars.Theterminal’sownersturnedtoKrytonforhelp.Krytonuseditsflagshipproduct,KrystolInternalMembrane,towaterprooftheconcreteaswellastheKrystolWaterstopSystemforjointsandKrystolCrackRepairSystemforcrackrepair.Theprojectwascompletedin2009.

México (Central)

Comercializadora Tidal, S.A. de C.V.Contact: Lic. Damaso CuencaTel:+52-55-1107-0697 Website: www.tidal.com.mx Email: damaso@tidal.com.mx

México (Norte)

Comercial Kalte, S.A. de C.V. Contact: Pepe Medellin TrevinoTel: +52-81-1292-5100Website: www.kalte.com.mx Email: pepe@kalte.com.mx

Kryton Distribution in Mexico

Tanque Belenes, Guadalajara

AmajorconcernforthegovernmentsupplyingpotablewatertoresidentsofBeleneswasdependability.Foryearstheareahadfacedchallengeswithleaksinwaterlinesandwatertanks,surfacecontaminationandpoliticalwrangling.SowhenitcametorepairingthedecadeoldBeleneswatertank,thegovernmentknewitneededtoprovideareliableandsafesolution.Eventhoughitwas10yearsold,thewatertankhadneverbeenputintouseduetomajorsurfaceissuesincludingcracksinthewallsandslab.KrytonrecommendeditsKrystolCrackRepairSystem,includingKrystolT1/T2andKrystolBari-Cote,forusethroughouttheproject.Thesystemwasusedonthecracks,joints,tieholes,wallsandslab.Together,thecompleterepairsystemensuredahealthysourceofdrinkingwaterforthecommunitythetankserves.

Checkoutwww.kryton.comtoseeotherareaswhereKrytondistributorsarechangingconcreteconstructionforthebetter,includingEurope,SouthEastAsiaandAfrica.

KrytonhasdistributorsthroughoutMexico.ContactanyofthemtofindoutmoreabouthowKryton’swaterproofingproductscansaveyoutimeandmoney.OrcontactAlfonso Urquidi,Kryton’sLatinAmericaterritorymanager,atalfonso@kryton.comorbyphoneat+604-324-8280.

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Concrete Waterproofing that Works!Concrete Waterproofing that Works!

Using KIM® in your concrete can save you time and money and replace the need to use costly and time consuming surface applied membranes that can often prove to be unreliable. Since 1973 Kryton has helped architects, engineers and builders create dry, waterproof concrete using Krystol Technology.

Our waterproofing admixture, KIM®, is faster, more reliable and costs 25% less than using traditional waterproofing systems. KIM® is backed by the industry’s longest warranty.

For more information on the longest standing crystalline waterproofing admixture jobs in the world, visit us online at www.kryton.com or call us at 1-800-267-8280 or +1-604-324-8280.

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KIM® resists hydrostatic pressure up to 140m.

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