ASTM C1472-2010 确定密封层接缝宽度时位移和其他影响计算的标准指南

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【英文标准名称】:StandardGuideforCalculatingMovementandOtherEffectsWhenEstablishingSealantJointWidth
【原文标准名称】:确定密封层接缝宽度时位移和其他影响计算的标准指南
【标准号】:ASTMC1472-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C24.10
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:桥梁伸缩缝;对接;建筑公差;伸缩缝;角焊接头;水分移动;性能系数;密封剂;密封胶衬垫;密封层接缝设计;热运动;密封层(剂);计算试验值;移动计算;密封层接缝宽度
【英文主题词】:bridgejoint;buttjoint;constructiontolerance;expansionjoint;filletjoint;moisturemovement;performancefactor;sealant;sealantbacking;sealantjointdesign;thermalmovement;Sealants;Calculatingtestvalues;Movementcalculation;Sealantjoin
【摘要】:Designprofessionals,foraestheticreasons,havedesiredtolimitthespacingandwidthofsealantjointsonexteriorwallsandotherlocationsofnewbuildings.Analysisoftheperformancefactorsandespeciallytolerancesthataffectasealantjointisnecessarytodetermineifajointwillhavedurabilityandbeeffectiveinmaintainingasealagainstthepassageofairandwaterandnotexperienceprematuredeterioration.Ifperformancefactorsandtolerancesarenotunderstoodandincludedinthedesignofasealantjoint,thenthesealantmayreachitsdurabilitylimitandfailureisadistinctpossibility.Sealantjointfailurecanresultinincreasedbuildingenergyusageduetoairinfiltrationorexfiltration,waterinfiltration,anddeteriorationofbuildingsystemsandmaterials.Infiltratingwatercancausespallingofporousandfriablebuildingmaterialssuchasconcrete,brick,andstone;corrosionofferrousmetals;anddecompositionoforganicmaterials,amongothereffects.Personalinjurycanresultfromafallincurredduetoawettedinteriorsurfaceasaresultofafailedsealantjoint.Buildingindoorairqualitycanbeaffectedduetoorganicgrowthinconcealedanddampareas.Deteriorationisoftendifficultandverycostlytorepair,withthecostofrepairworkusuallygreatlyexceedingtheoriginalcostofthesealantjointwork.Thisguideisapplicabletosealantswithanestablishedmovementcapacity,inparticularelastomericsealantsthatmeetSpecificationC920withaminimummovementcapacityratingofx00B1;12x00BD;percent.Ingeneral,asealantwithlessthanx00B1;12x00BD;percentmovementcapacitycanbeusedwiththejointwidthsizingcalculations;however,thewidthofajointusingsuchasealantwillgenerallybecometoolargetobepracticallyconsideredandinstalled.ItisalsoapplicabletoprecuredsealantextrusionswithanestablishedmovementcapacitythatmeetsSpecificationC1518.Theintentofthisguideistodescribesomeoftheperformancefactorsandtolerancesthatarenormallyconsideredinsealantjointdesign.Equationsandsamplecalculationsareprovidedtoassisttheuserofthisguideindeterminingtherequiredwidthanddepthforsingleandmulti-component,liquid-appliedsealantswheninstalledinproperlypreparedjointopenings.Theuserofthisguideshouldbeawarethatthesinglelargestfactorcontributingtonon-performanceofsealantjointsthathavebeendesignedformovementispoorworkmanship.Thisresultsinimproperinstallationofsealantandsealantjointcomponents.Thesuccessofthemethodologydescribedbythisguideispredictedonachievingadequateworkmanship.Jointsfornewconstructioncanbedesignedbytherecommendationsinthisguideaswellasjointsthathavereachedtheendoftheirservicelifeandneedroutinemaintenanceorjointsthatrequireremedialworkforafailuretoperform.GuideC1193shouldalsobeconsultedwhendesigningsealantjoints.Failuretoinstallasealantanditscomponentsfollowingitsguidelinescanandfrequentlywillresultinfailureofajointdesign.Peerreviewedpapers,publishedinvariousASTMSpecialTechnicalPublications(STP),provideadditionalinformationandexamplesofsealantjointwidthcalculationsthatexpandontheinformationdescribedinthisguide(2-5).Forcasesinwhichthestateoftheartissuchthatcriteriaforaparticularconditionisnotfirmlyestablishedortherearenumerous..........
【中国标准分类号】:Q24
【国际标准分类号】:91_100_50
【页数】:21P.;A4
【正文语种】: