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bit.ly/Krystol_Magazine_11-2 Kryton's Krystol Magazine 11-2 features an in depth look at integral crystalline waterproofing, illustrates how kryton products can waterproof shotcrete, provides information about Kryton's free continuing education courses, details green building tips, and features kryton news & products and a spotlight on Southeast Asia.
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Krystol® Magazine �
Kryst l®
Leaders in Integral Crystalline Waterproofing
®
www.kryton.comMagazine
Fall 2008 | Volume 11 | Issue 2
3096602
A Lesson in Shotcrete from San FranciscoA Lesson in Shotcrete from San Francisco
The ABCs of Integral Crystalline Waterproofing
Building “Green”
PLUS:Introducing Easy-CureSpotlight on Southeast Asia
www.kryton.com�
®
WE KNOW WHAT WORKSWhen it comes to waterproofing concrete, we know what works…and what doesn’t! Thirty-five years of world-wide success in creating dry, durable concrete structures has made us leaders in crystalline waterproofing technology. Extensive product research and development, two concrete permeability laboratories and a field-tested technical support team stand behind every project. Put our expertise to work for you! By Your Side.™
®
At the Lab. In the Field. By Your Side.
FOR EVERY SITE INSPECTION,WHATEVER THE ALTITUDE
FOR EVERY SITE INSPECTION,WHATEVER THE ALTITUDE
Krystol® Magazine �
Contents Fall 2008
4 TheABCsofIntegralCrystallineWaterproofing
6 ALessoninShotcretefromSanFrancisco
8 ByYourSide
8 Shotcrete-TestYourKnowledge
9 ApplaudingRecentMovesbytheACI
9 UpgradeyourKnowledgewithAECDaily’sFree ContinuingEducationCourses
10 Building“Green”
12 IntroducingEasy-Cure
12 HotWeatherConcretingChallenges
13 KrytonQuestions–AskaKrytonExpert
14 SpotlightonSoutheastAsia
Krystol® Magazine is printed twice a year by The Kryton Group of Companies1645 East Kent AvenueVancouver, BC V5P 2S8Canadawww.kryton.com
For information about this publication or about The Kryton Group of Companies, write to the above address, phone (604) 324-8280 or 1-800-267-8280, or email [email protected]
Copyright © 2008 Kryton International Inc. All rights reserved.
EditorsLeo ConnellKaren NgSheila CalderLinda MunroJerry Colman
Design/ProductionYvonne Lee
Printed in Canada by Hemlock Printers Ltd.
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The s of Integral Crystalline Waterproofing
lthoughcrystallinewaterproofingtechnologyhasbeenaroundformorethan50years,itisstill
considered“state-of-the-art”andhasonlyrecentlybeenembracedbytheconstructionindustryasasuperiorreplacementforconventionalmembranes.Usedinvirtuallyeverycountryaroundtheworld,integralcrystallinewaterproofinghasbeenrepeatedlyandsuccessfullytested.
Thoughconcretelookslikeadense,rock-hardmaterial,it’sactuallyfullofpores,capillariesandmicro-cracksinvisibletothenakedeye.It’sthroughtheseopeningsthatwatercanenterandcausedamage,makingwaterproofingnecessary.Traditionalmembranesonlycovertheoutsideofconcretewhereascrystallinechemicalsactuallyworkdeepbelowthesurface,withintheconcretematrixitself.
Therevolutionarytechnologyofintegralcrystallinewaterproofingischangingthewayconcretestructuresaroundtheworldareprotectedfromthecorrosionandwaterdamage.Whencrystallinechemicalscomeintocontactwithwater,acatalyticreactionoccursthatproducescrystalsthatplugthenaturalporesandmicroscopicvoidsofconcrete.Crystallinetechnologywaterproofsconcretebyforminglonghexagonalprismsthatblockconcrete’sporesandtransformtheconcreteitselfintoastrong,durablewaterproofbarrier.
A Better Choice All Round
Unique Self-Sealing AbilityOneoftheuniquetraitsofanintegralcrystallinewaterproofingapplicationisitsabilityto“self-seal.”Onlyasmall
fractionofthechemicalsareusedtofacilitatecrystalgrowthwhentheyareinitiallymixedorappliedtoconcrete.Theunusedchemicalssitdormant.Whenfuturecracksoccur,wateractsasacatalysttothecrystallinechemicals,triggeringadditionalcrystalgrowthtosealthecrack.
A Permanent and Sustainable ChoiceIntegralcrystallinewaterproofingisapermanentsolution–itwillnotcrack,peel,tearorwearaway,evenagainsthighhydrostaticpressure,soitneverneedsreplacing.It’snontoxic,safeforpotablewatertanksandcontainsnovolatileorganiccompounds.Incomparison,externalmembranesareusuallypetroleum-basedandcanleachoilintotheground,contaminatingdrinkingwater.Membrane-coatedconcretealsogoesstraighttothelandfillwhilecrystallinewaterproofedconcretecanbesafelyrecycled.
Easy ApplicationCrystallinechemicalscomeinpowderformandcanbeconvenientlyaddedtonewconcreteatthetimeofbatchingoratthejobsitetocreateapowerfulwaterbarrierinslabs,wallsandjoints.Thereisnoneedforanytypeofsurfaceapplicationattheconstructionsite.
Crystallineformulascanalsobebrushedorsprayedontoexistingconcreteinslurryformorbroadcastontofreshconcreteflatworkbywayofthe“dry-shake”method.Productsandapplicationmethodsalsoexistforcrackrepair,constructionjoints,pipepenetrationsandform-tieholestoprotectagainstcontaminationandsteelreinforcementcorrosion.Thebestwaterproofingsystemscanbeappliedtothepositiveornegativesideofconcrete,allowingthestructuretobewaterproofedorrepairedwithoutthecostlyprocessofdigginguptheperimeterlandscaping.
A
Microscopic, needle-like crystals fill the pores and capillary tracts of concrete for guaranteed waterproof structures.
Krystol® Magazine �
The s of Integral Crystalline Waterproofing
Whenappliedtoexistingconcrete,crystallinechemicalsareabsorbedbynaturalcapillaryactionanddiffusion.Onceinside,thechemicalsbegingrowingcrystalsthatfillthenaturallyoccurringpores,capillariesandmicroscopicvoidsofconcrete.
Time and Cost SavingsUsingcrystallinesystemscanactuallyaccelerateprojectschedulesbyeliminatingtheneedforconventionalmembraneapplication.Backfillingcanbeginrightawayandthecostoflaborandsurfacemembranematerialsarereduced.
ReliabilityCrystallinetechnologyisimpervioustophysicaldamageordeterioration.Whilemembranesareatbestthe
daytheyareapplied,crystallinewaterproofingbecomesbetterwithtime.
Crystalline Copycats – What’s the Difference?
Kryton’sflagshipproductisKrystolInternalMembrane,betterknownasKIM.KIMisanenvironmentallyfriendlyadmixturethatismixeddirectlyintotheconcrete.Itcanbethrownintoaready-mixtruckina
convenientdissolvablebag.
KIMisalsotheworld’sfirstandleadingcrystallinewaterproofingadmixture.Being‘theoriginal’meansthereareplentyof
copycatsonthemarket.It’seasytoconfusecrystallinewaterproofing
withproductsthataresimplyconcretedensifiersorporeblockers.It’simportanttostayawayfromstearatesandsodiumsilicatesandbewareofhydrophobicproducts.
Therearemanycrystallineproductsthatclaimpermanent,in-depthwaterproofing.However,themajorityofthesecontainstearatesandsodiumsilicates.Stearatesandsodiumsilicatesareoftenclassifiedasdampproofersandnotwaterprooferssincetheyareknowntobreakdownandleachoutofconcrete.
Silicate-basedproductsreactwithcompoundsinconcretesuchascalciumhydroxideorfreelime.Thereactionbindsthecompoundsintoaninsolublesolidanddoesnotpenetratemorethanafewmillimetresintotheconcrete.Theseproductsdonotpossessself-sealingcapabilitiesandsincetheyareinsoluble,thepresenceofwaterinthefuturehasnoeffectonthem.
Stearate-basedproductsarealsohydrophobic,whichmeanstheyrepelwater.Theseproductshaveminimalpenetratingabilityandmerelyfilltheinitialsurfaceporesofconcrete.Theyarebestwhenfirstappliedandwillcontinuallydeteriorate.Inaddition,hydrophobiccompoundswillnotwithstandhydrostaticpressureovertimeandcannoteffectivelyprovidelong-termwaterproofing.
Stick to the Original: KIMKryton’sKIMisacementitiouschemicaladmixturethatcontainsnostearates,sodiumsilicatesorharmfulchlorides.KIMworksthroughaproprietaryblendchemicals,promotingcrystalgrowththatcounteractswaterintrusion.Moreover,KIMandotherKrystolproductsarehydrophilic–theyusewatertofacilitateachemicalreactionthatcreatesanimpermeableconcretemass.Morewaterequalsmorecrystals,untilnoadditionalwatercanpenetrate.KIM’sself-sealinghydrophilicpropertiesmeanit’sabletogrowthroughouttheconcrete,increasingresistancetohydrostaticpressureandallowingittobecomestrongerwithage.
Inshort,KIMworks.Itisatruecrystallinewaterproofingadmixturethathasbecometheindustrystandardfornewconstruction.Guaranteed.
Regular concrete and Krystolized concrete under a microscope
Kryton’s Krystol® waterstop system for construction joints is patent pending
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Beyonditselementsofstyle,luxuryandfunction,thishigh-endcondominiumdevelopmentisalsodefinedbyitssuperiorlocation.MerestepsfromtheFerryBuildingandtheEmbarcaderoCentreinthevibrant“SouthofMarket”orSoManeighbourhood,itissurroundedbyworld-classrestaurants,retailersandentertainmentvenues.
LocatedoneblockfromtheSanFranciscoBayand50-feetbelowthewatertable,therewasneveranyquestionthearea’snewestdevelopmentwasgoingtorequirewaterproofing.Tosavetimeandmoney,themaindevelopmentteamoptedforshotcrete,orsprayedconcrete,toformthebelow-gradewalls.Whileshotcreteisnotanewconstructionmethodology,usingtheapplicationstructurallyandwaterproofingitwithanadmixtureratherthananexternalmembraneis.
Makingthesituationevenmoreunique,thissteelandglassdevelopmentwithaconcretecorerequireda14-footthickconcreteslabasitsbasetokeepthebuildingssettledintothegroundandwithholdtheimmensehydrostaticpressure.
Themixed-useresidentialcomplexattractedattentionfromindustrystakeholderswhowerecurioustoseehowshotcreteandwaterproofingwithanadmixturewouldinteractandwhatresultsitwouldproduce.
Inventedintheearly1900’s,shotcreteinvolvessprayingconcreteormortarthroughahoseatahighvelocityontoasteel-reinforcedsurface.Duetotheforcewithwhichitisprojectedfromthenozzle,shotcreteundergoesplacementandcompactionatthesametime.Itisseenasaneffectivewayofsavingtimeandmoneybecauseitinvolveshalftheformingandequipmentofregularcast-in-placemethods.
Recently,shotcretehasbeengainingpopularityalongNorthAmerica’sWestCoast.SouthernCalifornia,forexample,hasseenadramaticincreaseinthecertificationofshotcretenozzlementosupportthedemandofexistingandfutureprojects.Developmentsarenowlookingtoshotcretetomeetdeadlinesandbudgets.
Inadditiontoprovidingwaterproofingfortheperimeterwallsofthefive-levelparkingstructure,Krytonproductswerealsousedtowaterproofthefoundationslabandelevatorpits.ThecoldjointsbetweentheslabandwallweretreatedwiththetwoproductKrystolwaterstopsystemforacompletelywatertightfoundation.Inall,almost80tonsofKrystolInternalMembrane(KIM)waterproofingadmixturewasused,whichisenoughtofill1,100readymixconcretetrucks.ThereadymixconcretewassuppliedbyBodeConcrete.
Generally,shotcreteischallengingtowaterproofwithconventional,surface-appliedwaterproofingmethods.Thehighspeedinwhichtheconcreteisforcedoutofthenozzlecandisplaceortearconventionalsurfaceappliedsystems.Theprojectteamrecognizedthosechallengesandsetouttofindawaterproofingsystemthatwouldwithstandtheimmensehydrostaticpressurefoundsofarbelowthewatertable.
Afterresearchingmanypossiblesolutions,theteamoptedforKryton’sKrystolConcreteWaterproofingSystem.TheKrystolInternalMembrane(KIM)isanadmixturethateliminatestheneedforexternalwaterproofingmembranes,makingtheapplicationprocessmorestraightforwardandconducivetoshotcreteapplication.Theadmixture
A Lesson in Shotcrete from San Francisco
San Francisco’s newest landmark residential condominium community spans a full city block and consists of four buildings rising eight, nine, 37 and 41 floors.
Krystol® Magazine �
measureswereinplace.Krytonprovidedadditionalinspectionservicestocheckdetailsaswellasmonitorthereadymixtrucksandshotcreteapplication.Testpanelswerecreatedwitheachnewmixtocheckconcreteproperties.Ashotcretedemonstrationwasalsocreatedtotestreboundandrebarstabilization.
Kryton’sSanFranciscobaseddistributor,RonL.BishopAssociates(RLBA),providedlocalsupporttotheentireteamandassistedinmonitoringthewaterproofingaspectoftheproject.Krytonalsoconsistentlyhadafactoryrepresentativeonsitetomonitorthewaterproofingprocessandtroubleshootasnecessary.
Theluxurydevelopmentopeneditsdoorstonewresidentsandbusinessownersinthesummerof2008.TheresultisashowpieceforthecityofSanFranciscoandahigh-qualityhometomorethan640people.ThenovelapproachofusingKryton’sadmixtureincombinationwithshotcreteassistedwithmeetingademandingconstructionschedule.ForKrytonandothersintheindustrywithwatchfuleyes,theprojectwaseducationalandrevolutionary.IthelpedtodemonstratethatshotcreteandKryton’sKIMadmixturecouldeffectivelyworkhand-in-handandpositionsKrytonasaleaderinwaterproofingshotcrete.
canbeintegratedwiththeconcretemixatthereadymixfacility,mitigatingconcernsoverdamagingmembranesduringtheshotcreteapplicationandeliminatingtheneedfordetailingaroundsoilnails.KIMalsosavestimeandmoneybecauseon-sitepreparationisn’trequiredandasubtradeisn’tneededtoapplythewaterproofingmembrane.TheprojectteamwaspleasedtofindthatKrytonmettheirneedsandmostimportantly,KrytonstandsbyitsproductsandguaranteesthatKIMwilllastthelifetimeofthestructure.
However,evenwithallKIM’sbenefits,therewerechallengesfacedonthismammothwaterproofingproject.
Duetothesizeandscopeoftheproject,theconstructionteamdividedthesiteintoquadrantsand40-footsections.Oftenwithlessthantwodaystotopoffeachsection,theteamhadtocompleteaminimum25-footliftandtwo-footdeptheachdaytomakefullheightonschedule.ThefastpacedscheduleposedKryton’sfirstwaterproofingchallenge.Tomeetdeadlines,anaccelerator
wasusedintheconcretetoassistinsettingandachievingtherequiredliftheights.Thisresultedintheconcretesettingmorequicklybutalsoledtounexpectedcoldjointsformingbetweentheshotcreteliftlines.Thiswasoneofthekeylessonslearnedindevelopingawaterproofedshotcreteapplicationprocess.Krytoncontinuestoworkondevelopingsystemstoaddressthisissueforfutureprojects.
Althoughnotalessoninshotcreteapplication,bleedwaterfromthe14-footslabposedauniquechallenge.Typicallybleedwaterrisestothesurfaceofconcreteandevaporates.Inthiscase,theslabwasexceptionallythicksoittooklongerfortheconcretetostopbleeding,whichmadefinishingdifficult.Whenworkingontheslab,theKrytonteamrecognizedthebleedwaterneededtobecontrolledandmanagedonthickerslabs–akeylessontakenfromthisproject.
Duetotheuniquenatureofthedevelopment,Krytontookextrameasurestoensurenoshortcutsweretakenandthestrictestqualitycontrol
A Lesson in Shotcrete from San Francisco
Did You Know? Whenconstructioncrewsbegandiggingthe60-footpitthatwouldbecomethefoundation,thelastthingtheythoughttheywouldfindwasanoldrelicfromSanFrancisco’shistory.Twenty-feetintotheexcavationofthesite,crewscameacrossa125-footshipwhichwaslateridentifiedasthe1818whalingshipTheCandace.BackinitsheydaytheshipwasusedforseatradesandspermwhalehuntingintheSouthAtlantic,PacificandIndianOceans.AfteravoyagetotheArcticdamagedtheship,CaptainNormanStarrguidedtheleakingvesseltoSanFrancisco,arrivingonJuly4,1855.TheCandacewasburiedunderthecityandforgottenuntilcrewsworkingonTheInfinitymadeherdiscovery.Astheonlyshiptobediscoveredin
tactunderthecity,TheCandacehasfoundanewhomeasthecenterpieceoftheSanFranciscoHistoryMuseum.
The team had to complete a minimum 25-foot lift each day to make full height on schedule.
The 1818 whaling ship The Candace discovered during excavation
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Withthedauntingtaskofconstructingfourbuildingsrisingeightto41storeysabovethegroundandsitting50-feetbelowthewatertable,thedeveloperknewtheyneededanefficientanddependableteam.Kryton’s“ByYourSide”philosophymadethemaprimecandidatefortheproject.
Asaworld-leaderinconcretewaterproofing,repairandmaintenance,Krytonassistsarchitectsandengineerstosolvecomplexchallengesthroughadedicatedsupportprogramthatincludesthirdpartyapplicationtraining,readymixqualitycontrolprogramsandtheindustry’sleadingwarrantyprogram.Krytonmeetsthedemandsplacedontheconstructionindustryfordurable,long-terminfrastructureacrosstheglobeanddoessowithatotalcommitmenttoitsclients’success.
Broughtonboardin2004,Krytonrecognizedthescaleandscopeoftheprojectwasgoingtorequirecomprehensiveon-sitesupportandguidance.BrianMacNeil,territorymanagerforKryton,providedin-personsupportastheprojectteambegantoworkwithKrystolproducts.Brianprovidedadviceforspecifications,applicationtrainingandqualitycontrolmethods.Overthespanoftwoyears,hetravelledfromhisbaseinVancouver,CanadatoSanFranciscomorethan30times.
ChoosingKryton’sKrystoltechnologytowaterproofprojectsensureslong-termsecurityandpeaceofmind,whilepotentiallysavingclientstensofthousandsofdollarsandshavingweeksoffconstructionschedules.
For more information about Kryton’s By Your Side service, visit www.kryton.com.
Kryton’s Brian MacNeil travelled from Vancouver to San Francisco more than 30 times in two years.
A. Shotcrete was invented in:
1.the1950s2.1885,aspartoftheworld’sfirstskyscraperinChicago3.theearly1900s4.thetimeoftheRomanEmpire
B. Shotcrete’s inventor was a:
1.structuralengineer2.gladiator3.taxidermist4.carpenterC. Shotcrete can be applied:
1.onverticalsurfaces2.onslopes3.onoverheadsurfaces4.alloftheabove
D. Shotcrete’s cousin, gunite, was named because
1.itwasappliedwitharapid-firegun2.itisamisspellingof“gummite,”astickysubstancethatadherestowalls3.itsoriginalapplicationwasforinternalsidesofguntowers4.itwasappliedwitha“cementgun”
E. The inventor of shotcrete had a special interest in:
1.aquaducts2.gorillasandelephants3.Romancelanguages4.meteorology
F. The term nozzleman is used for the person
1.whocontrolsthenozzlethatdeliverstheconcretetothesurface2.whocleansthenozzlethatappliesshotcrete3.whobringssuppliesforlunchandcoffeebreakstothejobsite4.whoholdsthehoseandfeedsthehopper
G. The inventor of shotcrete also
1.madeimprovementstothemotionpicturecamera2.wrotestoriesforchildren3.ledanexpeditiontotheBelgianCongo4.alloftheabove
Shotcrete – Test Your Knowledge
Answers: A. 3; B. 3; C. 4; D. 4; E. 2; F. 1; G. 4By Your Side
Krystol® Magazine �
The104-yearoldAmericanConcreteInstitute(ACI)istakinganewdirectionfollowingtheSpring2008Convention.Withadynamicandinnovativestrategicplan,theinstitutewillnotonlycontinuetodevelopeducationandcertificationprograms,butwillalsoemphasizecollaborationwithrelatedorganizationsandassociations.
Realizingthenextgenerationofconcreteworkersandengineersrequireasolideducationandeasyaccesstoinformation,theACI’sboardofdirectorsrequestedataskgroupbeformedtoevaluateexistingprograms,determineifothereducationalopportunitiesexistandidentifyprogramsorproductsthatcouldproduceadditionalrevenuefortheinstitute.
ThetaskgroupidentifiedfournewinitiativestoenhancetheACI’scurrenteducationalprograms.Theyinclude:creatinganaudioversionofthebookTheContractor’sGuidetoQualityConcreteConstruction;creatingandmaintainingawebpageonsustainabilityandemergingorinnovativetechnologies;developingandpromotingprogramsforinspectorstosupportACIcertificationprograms;anddevelopingane-learningproductonawiderangeoftopicsinpartnershipwithElsevierLtd.
Inaddition,theinstitutehasplacedanewemphasisonrecruitingacademicgraduatesoruniversitymembersand,
througharecente-studentmembershipdrive,hasaddedmorethan3,000newstudentmembers.
“StudentsareoftenmadeawareoftheACIthroughtheirmentorsorprofessors,”saysKariYuers,CEOofKrytonandoneoftheACI’sboardofdirectors.“TheACIwantstomakesuretheyareofferingthemsomething,atnocost,toenhancetheirtraining.”
StudentmembershipisnowfreeandACImemberscandownloadtechnicaldocumentsforfreeaswell.
AnotherimportantgoalofthestrategicplanwasimprovingthequalityandsustainabilityofconcreteconstructionthroughenhancedcollaborationwithACI-relatedorganizationsandassociations.TheboardrecognizedtheneedtodeveloptoolsandresourcestofurthertheinternationalgrowthofACIcertificationprograms.Asafirststep,theboardapprovedaproposaltohelpnewinternationalACIcertificationsponsoringgroupsinarrangingandpromotingACIcertificationprograms.
Inaddition,reorganizingthe318Codeandcontinuingtodevelopandregularlyupdatethepractice-orientedConcreteKnowledgeCenterwebsite,willbekeyfortheACIinthecomingyears.Giventheenthusiasmwiththenewdirection,theboardwillmeetagaininMarch2009inSanAntonia,Texas.
“ThebottomlineistheroleoftheACIistoimproveourindustryforthebenefitofeveryone–fromworkerstocustomerstothepeoplewhoworkaroundanduseconcreteeveryday,”saysYuers.
The ACI has more than 20,000 members in 108 countries around the world. Yuers was nominated and appointed to the 19-member board in 2007.
Applauding Recent Moves by the ACI
CheckoutKryton’sweb-basedcourseonIntegralCrystallineWaterproofingTechnology.ThecourseisCEcertifiedandcanbefoundonAECDaily,awebsiteforarchitecture,engineeringandconstructionprofessionals.ItisapprovedbytheAIA,CSIandCSCaswellasmanyotherindustryassociations.
Thespecializedintegralcrystallinewaterproofingcourseprovidesanoverviewofwhatmakesupconcrete,
thefactorsthatcanleadtowearandtearonconcretestructuresandapplicationsthatcanbeusedtopreventdegradationandincreasedurability.
Thecourseisself-administeredonlineandprofessionalswhotakethecourseautomaticallyearncredittowardtheircontinuingeducationprogram.
Takethecoursetodayatwww.aecdaily.com/sponsor/kryton.
Upgrade your knowledge with AEC Daily’s Free Continuing Education Courses.
Kryton’s President & CEO Kari Yuers
Kryton’s course recently unveiled on AEC Daily
By Your Side
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nMay2007,aforce5tornadohitGreensburg,Kansas,destroying95percentofthetown’shomesandbusinesses.Butthecitycouncildecided
toseethisdisasterasanopportunitytorebuildasagreencommunity.TheypassedaresolutionrequiringallcitybuildingprojectstobereconstructedtoLEEDplatinumlevelstandardsandhaveanenergyperformanceofatleast40percentbetterthanthecurrentbuildingcoderequirements.
Whocouldhavepredictedthatafringemovementbegunlittlemorethanadecadeagototrytosetstandardsfordevelopingenvironmentally-responsiblebuildingwouldhavesuchfar-reachingeffects?
ThroughoutNorthAmerica,constructionindustrystakeholdersareincreasinglyrecognizinggreenbuildingcapabilitiesastherightthingtodo.Building“green”isbecominganecessarypartofafirm’sbestpractices.Insteadofjustbeinganichesector,greenbuildingisnowattheforefrontofdesignandconstruction.TherigorousLEED(LeadershipinEnergyandEnvironmentalDesign)GreenBuildingRatingSystemisrapidlybecomingthestandardformeasuringabuilding’senvironmentalperformance.OnlyintroducedintheU.S.in2000,andinCanadain2004,LEEDstandardsareencouragingtheconstructionindustrytocreatebuildingsthatareenvironmentallyresponsible,healthyandprofitable.GovernmentsatalllevelsacrosstheU.S.andCanadaareimposingregulatoryrequirementstoensurenewpublicbuildingsmeetacertainLEEDstandard.
Green ConcreteWithgrowingglobalpressuretogogreen,moreeco-friendlyproductsarebeingdeveloped.“Greenconcrete”usedtorefersolelytoconcretethathadsetbutnothardened.Today,italsomeansconcretethat’smadewithrecycledalternativematerialssuchasreclaimedflyash–aby-productofcoalburnedatpowerplants.Usuallytruckedofftolandfills,thetinyglassparticlesofflyasharenowbeingusedinplaceoftraditionalPortlandcementtomakeconcrete.Notonlydoesaddingflyashincreaseconcrete’sstrengthanddurabilitybutitreducesthegreenhousegasfootprintofconcrete.Everytonofstandardcementproducedrequiresaboutone-and-a-halftonsofrawmaterialsandanintenseuseoffossilfuel–somuchso,theworldwideproductionofPortlandcementaccountsforapproximatelyeightpercentofallcarbondioxideemissionsfromhumansources.Carbondioxideistheprimarygreenhousegascausingglobalwarming.
Building ”Green”Devastation of Greensburg, Kansas after a Force 5 tornado wiped out the city
I
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Anothergreeninnovationisanewconcreterecipespikedwithtitaniumdioxide–acompoundoftenusedinsunscreenproducts.Thisnewcementbecomeschemicallyactiveinsunlightandneutralizesairpollutantssuchasbenzene,carbonmonoxide,nitrogenoxideandothers.OriginallyusedacenturyagoinEuropeasstructuralinsulation,perviousconcreteisapermeable,porousmaterial.Itisalsoanenvironmentallyfriendlymaterialandisnowmakingaresurgenceinplacessuchasparkinglotsbecauseitallowsstormandnuisancewatertofiltrateintotheground,recharginggroundwaterandresultinginzerodischargeofpollutedrunoffintowaterways.Thisinturnreducesurbanflooding,improvesthehealthofadjacenttreesandreducesoreliminatestheneedforstormdraininfrastructure.
However,moreofteninbuildingsandconstruction,it’swaterproofconcretethat’sneeded.Increasingly,inthenewLEED-basedparadigm,theoldmethodsofwaterproofingconcretewithoil-basedmembranesheetsarenotenvironmentallyacceptable.
That’swhereKryton’sproductshavetwoadvantages–waterproofingwhilealsobeingenvironmentallyfriendly.
Environmentally Responsible Waterproof ConcreteWhileconcreteonitsownhashugeadvantagesasagreenbuildingmaterial,makingitwaterproofusingold-fashioned,externallyappliedmembranesislessacceptableintoday’seco-consciousenvironment.
Externalmembranesareoftenpetroleumbasedandaretypicallyappliedusingadhesiveswithhighvolatileorganiccompounds.Thehighvapouremissionsfromthesecompoundscancauserespiratoryproblemsandcontributeto“sickbuildingsyndrome.”Oilfromconventionalmembranescanalsoleachoutandcontaminategroundwater.
Krytonproductsareasolutiontotoday’spressuretochangethewaywebuild.Krytoncanhelpdevelopers,
engineersandarchitectsgogreenwithenvironmentallyresponsiblebuildingpractices.
Kryton’scrystallinetechnologypermanentlysealsconcretebypluggingitsnaturalporesandcapillariesandblockingthemovementofwater.Itreactswithincomingwatertoself-sealthecracksthatdevelopinconcrete,protectingstructuresagainstwaterandcontaminantsthatcan
weakenordestroyconcreteandcorrodesteelreinforcements.
Kryton’sintegralcrystallineadmixturecreatesstrong,waterproof,environmentally-safeconcrete.
Althoughonlybuildings,notmaterials,canbecertifiedasmeetingLEEDstandards,KrytonproductscancontributetoachievingvaluableLEEDpointsinavarietyofways:
Reducedsitedisturbance–Noneedtoexcavatetoprovidespacefortheapplicationofaphysicalmembrane
Concretewastemanagement–Krystolizedconcretecanberecycledwhilemembrane-coatedconcretecannot
Indoorenvironmentalquality–Krystolcontainsnovolatileorganiccompoundsandisnon-toxic
Enhanceddurability–Krystolcontributestotheoveralldurabilityandlifeexpectancyofabuildingbystoppingcorrosionandotherdetrimentaleffects
It’spredictedhalfofNorthAmerica’sexistinginfrastructurewillneedreplacinginthenext20years–whetherduetonaturaldisasterornaturaldecomposition.KrytonisworkingtowardensuringsustainabilityplaysabigpartinthebillionsofdollarsthatwillbespenttorebuildNorthAmerica.Strong,waterproofconcrete—waterprooffromtheinsideout—iskeytotomorrow’senvironmentalsustainability.
TofollowtheprogressofGreensburgasthecityrebuilds,visitwww.greensburgks.org.
KIM® treated “green” concrete is poured and placed like normal concrete
KIM® Admixture comes in mixer-ready bags, reducing waste material
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Krytonhasrecentlyunveiledacost-effectivecuringcompoundthatmeetstherequirementsoftheAmericanSocietyforTestingandMaterials(ASTMC309).Easy-Cure,thenewmembrane-formingliquidcuringcompound,helpstoproperlycureconcretebyslowingtheevaporationofwaterfromfreshlyfinishedconcrete.Thestrength,durabilityandwater-resistanceoftheconcreteareenhancedbyminimizingcrackingandpromotinghydration–thechemicalreactionbetweencementandwater.
Theproductworkshand-in-handwithotherKrytontechnologysuchastheKrystolInternalMembrane(KIM)waterproofingadmixturesystem.Easy-CurehelpstodecreasethepermeabilityofconcreteandretainstheinternalwaternecessaryformaximizingKIMcrystalgrowth.Asawaterbornecompound,Easy-Curecanbeeasilysprayedorrolledontothesurfaceofconcreteafterfinishingiscomplete.Itisavailableinclearorwhitepigmentingtoreduceheatingfromthesunandhelpwiththeapplicationprocess.
Introducing Easy-Cure
Hot Weather Concreting Challenges Whilemanyindustriesmayflourishinwarmclimates,hightemperaturesandhumiditycreatemanychallengesfortheconstructionindustry.Hot,dryweathercanleadtoexcessivesurfacemoistureevaporationduringconcretecuring.Thiscancauseshrinkage,cracking,finishingdifficultiesandreducedconcretestrengthinbuildings–problemsthatmustbemitigatedfromtheonsetofandthroughoutconstruction.
Alossofconcreteconsistencyisanothermajorconcernwhenworkinginwarmweatherconditions.Onsiteequipmentthatinteractswiththeconcrete–fromthemixerstoconveyorbelts–shouldbekeptshadedandcooltoprotecttheconcrete.Warmweatherimpactsthesettingtimeofconcretebycausingittodrytooquickly.Thismakes
finishingdifficult,canreducetheoverallconcretestrength,andincreasecracking.Aneffectivesolutionistouseanadmixturetoslowdownsettingtimesandreduceshrinkageandcracking.
Concretinginwarmertemperaturescallsforextracareandmakesthecuringprocessevenmoreessential.Propercuringpracticesprotectconcretebymaintainingasatisfactorymoisturecontentandtemperature.Itenhancesthedurabilityandstrengthofconcrete.
Whiletheremaybemanychallengesofplacingconcreteinwarmweather,withextracareandtheuseofacuringagent,theeffectscanbeminimized.Theresultisapositiveoutcomeforbuildersandthosewholiveandworkeverydayinconcretebuildings–nomatterwhattheweather.
Easy-Cure™ meets the requirements of the AmericanSociety for Testing and Materials (ASTM C309)
Excessive surface moisture evaporation can cause shrinkage, cracking and reduced concrete strength
Krystol® Magazine ��
What is curing?Concretecuringistheprocesswheresufficientmoistureandtemperatureconditionsaremaintainedinordertopromotehydration–thechemicalreactionbetweencementandwater.
Why is it important to cure?Properlycuringconcreteisanessentialstepinproducingdurable,highstrengthconcrete.Adequatehydrationthroughcuringminimizesdryingshrinkagecracks.Overtime,curingpaysforitselfbyincreasingtheconcrete’sdurabilityandlifespanandbyreducingtheneedforrepairingcracksandleaks.
What are some curing methods?AccordingtotheAmericanConcreteInstitute’sStandardPracticeforCuringConcrete(ACI308),curingshouldbecontinuousforaminimumofsevendaysoruntil70percentofthespecifiedstrengthhasbeenattained.
Propercuringtechniquesarecommonlycategorizedintotwogroups:
1)Continuallyorfrequentlyapplyingwater(e.g.pondingorimmersion,sprayingorfogging,usingsaturatedwetcoverings,etc.)
2)Preventingexcessiveevaporationusingsealingmaterials(e.g.coveringwithimperiouspaperorplasticsheets,usingamembrane-formingcuringcompound,etc.)
Thecuringtechniqueuseddependsonavarietyoffactors.
What is a membrane-forming curing compound?Amembrane-formingcuringcompoundisaliquidthat,whensprayedorrolledontothesurfaceoffreshlyfinishedconcrete,helpstoreducetherateofevaporationofwaterfromtheconcretesurface.
Can curing compounds replace traditional water curing methods?Yes–CuringcompoundsconformingtoASTMC309areasuitablereplacementforwetcuringaccordingtotheAmericanConcreteInstitute’sStandardPracticeforCuringConcrete(ACI308).
What is the benefit of using a curing compound over other curing methods?Curingcompoundsarepreferableundermanyconditionsduetotheireaseofuse,practicalityandlowcost.Inadditiontoassuringaconsistentqualitycure,curingcompoundsareespeciallyusefulinsituationswherewatercuringisnotfeasible.Forexample:
InareaswherewaterisnotaccessibleoravailableInremoteareaswherethereareincreasedlabourcostsassociatedwithtravellinginandoutofthejobsiteInwindyorhotareaswheretheevaporationofwaterisexcessive
How does Kryton fit in the curing process?WhenusedwithKrystoltechnology,curingcompoundshelptowaterproofconcretebyretainingtheinternalwaternecessaryformaximizingKIMcrystalgrowth.Inaddition,curingcompoundshelptodecreasethepermeabilitybyreducingthenumberofdryingshrinkagecracks.
Any other question on curing or curing compounds?With35yearsofinternationalsuccessincreatingdry,durableconcrete,Krytonistheleaderincrystallinewaterproofingtechnology.PuttheKrytonknowledgeandexperiencetoworkforyou–ifyouhaveanyquestions,justaskaKrytonexpert!
Kryton Questions – Ask a Kryton Expert!
A curing compound helps to reduce the rate of evaporation of water from the concrete surface.
Easy-Cure™ WithoutEasy-Cure™
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Marina Bay Sands Integrated Resort and Casino, Singapore
LocatedatMarinaSouthinSingapore,MarinaBaySandsresortwillfeatureSingapore’sfirstcasino,threehotels,theatres,awaterfrontpromenadeandaconventioncentre.Constructiononthesprawling560,000squaremetresitebeganinNovember2007andcalledformorethan50,000cubicmetresofconcretetobewaterproofedwithKryton’sKIMadmixture.Itisoneofthemostextensivesingle-sitewaterproofingprojectsundertakenbyKrytontodateandisduetobecompleteinlate2009.
Big Box Mega Store, Singapore
Spanningalmost27footballfields,theBigBoxMegaStorelocatedinJurongEastinSingaporeisusingKryton’swaterproofingproductsforallbelow-gradesurfaces.Approximately15,000to18,000cubicmetresofconcretewillbewaterproofedwithKIMadmixture.Constructiononthestoreisunderwayandduetobecompletein2009.Whenfinished,thestorewillcontainretailspace,warehousingandoffices.
Scotts Square, Singapore
ScottsSquare,intheheartoftherenownedOrchardRoadshoppingdistrictofSingapore,isatwo-towercondominiumandretailspacecomplexthatwilluseKryton’sKIMadmixtureinthefourfloorsoftheprojectthatarebelowground.The43-storeytowerswillincluderesidentialandofficespace,andisexpectedtobecompletein2011.Whencomplete,sculpturesbyHenryMoore,DaleChihulyandSalvadorDaliwillgracethegrounds.ConstructionbeganinSeptember2008.
Spotlight on Southeast Asiaespiteuncertaintimesintheglobaleconomyelsewhereintheworld,theAsia-Pacificregioncontinuestoworkatfullspeedintheconstruction
sector.“RobustgrowthindevelopingAsiawillmakeawelcomeandsignificantcontributiontoglobalgrowthin2008,”saystheAsianDevelopmentBank’sglobaloutlookfor2008.TheADBsuggeststhatjustoverone-fifthofglobalgrowthin2008willbeattributabletodevelopingAsia.1
ThiscontinuestobegoodnewsforKryton,asmoredevelopmentfirms,propertyownersandcontractorsintheregionaretakingadvantageofKryton’scompletecrystallinetechnologysolutionforwaterproofingbelow-grade,concretestructures.
TheSoutheastAsianconstructionindustryhasbeenakeyplayerinthegrowthofcrystallinewaterproofingforyears.ForKryton,thearearepresentsarapidlygrowingportionofthecompany’srevenuesandalreadyin2008,year-over-yearsaleshaveincreasedwellover50percent.Thecompanyalsorecentlyimplementedpermanent,full-timeregionalrepresentationinSingaporeandcontinuestoinvestandgrowthemarket.
Recently,Kryton’sflagshipproduct,KrystolInternalMembrane™(KIM®),achievedSIRIMcertificationinMalaysia.SIRIMcertificationisnecessaryforallgovernmentprojectsandwillallowKrytontoexpanditspoolofopportunitiesintheregion.SIRIM,a
Malaysiangovernment-run,market-drivenorganization,isthenationalauthorityonresearch,technology,standardsandquality.
Similarly,thecompleteKrystolcrystallinewaterproofinglineofproductsrecentlyobtainedCPRUcertificationinBrunei.FormedbytheMinistryofDevelopment,theConstructionPlanningandResearchUnit(CPRU)promotessafety,qualityanduniversalstandardsinBrunei.CertificationprovidesKrytonwithaccesstoallgovernment-ownedprojectsintheoilandgas-richstate.
TakealookatfiveofKryton’smostrecentmega-projectsintheSoutheastAsiaarea:
1www.adb.org/documents/books/ado/2008/default.asp
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Krystol® Magazine ��
KK Times Square – Phase 1 and 2, Kota Kinabalu, Sabah, Malaysia
KKTimesSquareislocatedintheheartofKotaKinabalu,apopulartouristdestinationnearBorneo.Theproject’sfirstphaseof12blocksofbusinesssuites,shops,officesandretailoutlets,wascompletedin2007andusedacombinationofKryton’sKIMadmixture,T1&T2surfacetreatmentandKrystolWaterstopSystemfromtoptobottom.Inlightoftheproject’sproximitytoSuteraHarbourintheSouthChinaSea,theprojectcalledforawaterproofingsystemthatcouldwithstandconstanthydrostaticpressure,protectagainstthecorrosionofsteelreinforcementsandwithstandtheuncompromisingheatandhumidityofSabahformanyyears.Morethan100,000kilogramsofKIMadmixturein15,000cubicmetresofconcretewereusedinthebasementslabsandelevatorpitsofKKTimesSquarePhaseOne.Kryton’swaterproofingproductswerealsousedintheelevatedcarramps,pedestrianwalkways,retainingwalls,drainageareasandrooftops.Withthatprovensuccess,Kryton’sproductsarealsobeingusedinPhaseTwo,whichisnowunderconstruction.
PhaseTwoisa15-acredevelopmentcomprisingafive-starhotel,shoppingcomplexes,exhibitionfacilities,restaurants,cineplexes,twoprimeofficetowersandcondominiums.Krytoniswaterproofinganother15,000cubicmetresofconcreteforthisphase.Whencomplete,KKTimesSquarewillbecompletelywaterproofedwithKryton’sKrystolWaterproofingSystem.
Zenith Corporate Park, Kuala Lumpur, Malaysia
ZenithCorporateParkisdesignedtobealeadingbusinesscentreforKelanaJayainKualaLumpur.KrytonhasbeenactivelyinvolvedsinceApril2008,waterproofingmorethan15,000cubicmetresofbelow-gradesurfaces.Intotal,over80,000kilogramsofKIMadmixturewillbeused.Thenine-acreprojectisexpectedtobecompletedbymid-2010andwillbeKryton’sflagshipprojectinKualaLumpur.
KoreaBuil Keonwha Co., Ltd.Contact: Mr. Im Sang GyuTel: (822) 3473-4066Fax: (822) 3473-4642Email: [email protected] Website: www.kryton.co.kr
TaiwanPoplar Co., Ltd.Contact: Mr. Franco Kao or Mr. Andy Chen Tel: +886-2-2561-8191Fax: +886-2-2561-8008Email: [email protected]: www.poplar.com.tw
PhilippinesJalipa Crystalline Waterproofing Services Contact: Ms. Yassi Figdor Cell: +63-91-5319-1596Tel: +63-28407-0359 Fax: +63-2887-3724 Email: [email protected]
VietnamGia Phu Dinh Construction & Trading Co., Ltd. (based in Ho Chi Minh City) Contact: Brian Doan Tel: +84 918 030 431 Email: [email protected]
Malaysia – Kuala Lumpur, Central Region and SarawakRovski Technology SDN BHDContact: Mr. Mohd Hairunnazim Suli or Mr. Azhdrel HashimTel: +6 (035) 633-2908Fax: +6 (035) 634-1186Email: [email protected] or [email protected]: www.rovski.com.my
Malaysia - Kota Kinabalu, SabahConcrete & Waterproofing Technology Sdn Bhd Contact: Mr. Tee Ah Chong Tel: (601) 88-726-386Fax: (601) 88-7120386Email: [email protected]
BruneiBrunei DarussalamBUE EnterpriseContact: Mr. Chris YongTel: (673) 233 9191Fax: (673) 233 3007Email: [email protected]
Singapore Lee Construction Pte LtdContact: Mr. Dick LeeTel: (65) 6842-2345Or: (65) 9667-4326Fax: (65) 6842-4812Email: [email protected]: www.leeconstruction.com.sg
ThailandConcrete and Foundation (Thailand) Co., Ltd. Contact: Mr. Doan BinhTel: (66) 02-81-837-66Fax: (66) 02-81-837-67Email: [email protected]
Australia (NSW, Victoria, Brisbane and W.A)Krystol Pty Ltd.Contact: Mr. Aaran Duncan or Mr. Claude FradelTel: (02) 9545 3111Fax: (02) 9545 3022Email: [email protected] or [email protected] Website: www.krystol.com.au
New Zealand (Wellington and South Island)Fraser Brown & Stratmore Ltd.Contact: Mr. Hamish Stratmore or Mr. Craig Meiklejohn Tel: (64 4) 567 8436Or: 0800 835 699Fax: (64 4) 567 7232Email: [email protected]: www.fbsltd.co.nz
New Zealand (Auckland)Fraser Brown & Stratmore Ltd.Contact: Mr. Denis Marra Mobile: (64) 27 245 9003Tel: (64 9) 535 3139Fax: (64 9) 535 3039Or: 0800 835 699Email: [email protected]: www.fbsltd.co.nz
Kryton Distributors in the Asia-Pacific RegionKrytonhasdistributorsthroughtheAsia-PacificRegion.ContactanyofthesedistributorstofindoutmoreabouthowKryton’swaterproofingproductscansavetimeandmoney.AlternativelycontactAlainLok,Kryton’sRegionalManager,[email protected].
Checkoutwww.kryton.comtoseeotherareaswhereKrytonAsia-Pacificdistributorsarechangingconcreteconstructionforthebetter,includingChinaandIndia.
www.kryton.com��
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ENSURE PROFITABILITY Kryton saves developers ten’s of thousands of dollars and shaves weeks off the construction schedule through a proven concrete foundation tanking system. Krystol® technology features the award winning, original crystalline waterproofing admixture and 100% compatible, patent-pending crystalline joint system and proven crack-repair application. By Your Side.™
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FOR EVERY PERSPECTIVE,WHATEVER THE PROJECT
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