桥梁混凝土结构工程

Reconstructionofroadsectionkm2183-2217«BorderofRussianFederation(toSamara)-Shymkent»900-1SECTION900-CONCRETEWORKS901SCOPEOFSECTION5902DEFINITIONS5903MATERIALSFORCONCRETE材料5AGeneral5BCement水泥6CGeneralrequirementsforaggregates一般规格的骨料7DFineaggregate细集料9ECoarseaggregate粗骨料9FTestingaggregates骨料试验111)Acceptancetesting验收测试112)Compliancetesting顺应性测试10GWaterforconcreteandmortar混凝土和砂浆用水10HAdmixturesandcementitiousextenders外加剂和胶凝混合剂10904THEDESIGNOFCONCRETEMIXES混凝土配合比设计11AClassesofconcrete混凝土等级11BDesignofproposedmixes配合比设计11905SITETRIALMIXES现场试验13906QUALITYCONTROLOFCONCRETEPRODUCTION混凝土拌和质量控制13ASampling取样13BTesting试验141)Consistence坍落度142)Water/cementratio水灰比143)Aircontent孔隙率144)FlakinessIndex剥落度145)Crushingconcretecubes抗压强度14CValidcuberesults有效立方体试块结果15DAcceptancecriteriaforcharacteristicstrengthconcrete高强度混凝土验收标准15ENon-complianttestresults不符合规范的试验结果15907MIXINGCONCRETE混凝土16908TRANSPORTOFCONCRETE混凝土运输18Reconstructionofroadsectionkm2183-2217«BorderofRussianFederation(toSamara)-Shymkent»900-2909PLACINGOFCONCRETE现浇混凝土18AConsentforplacing允许浇注条件18BPreparationofsurfacetoreceiveconcrete表面准备以进行混凝土浇注18CPlacingprocedures浇注工序19DPlacingconcreteunderwater水下混凝土灌注20EInterruptionstoplacing灌注中断22FDimensionsofpours浇筑尺寸22GPlacingsequence灌注工序22910PROTECTIONOFCONCRETEFROMTHEENVIRONMENT保护混凝土避受环境因素的破坏23AGeneral概述23BProtectionfromrain保护混凝土免受雨水影响23CHotweatherprecautions夏季防护措施23DColdweatherprecautions冬季防护措施241)Mixingandplacing拌和及浇注242)Initialcuring初期养护253)Placingconcreteunderwater水下混凝土25EProtectionfromsoilorwaterwithhighsulphatecontent防护混凝土免受高硫酸盐土壤或水的影响25FWaterproofingBuriedConcreteSurfaces地下混凝土表面防水25911COMPACTIONOFCONCRETE混凝土抗压强度26912CURINGOFCONCRETE混凝土养护27AGeneral概述27BMaterials材料28CMethodsofcuringconcrete养护方法281)Formworkin-placemethod模板安装282)Watermethod浸水法283)Liquidmembranecuringcompoundmethod液膜养护化合物法284)Waterproofcovermethod防水盖295)Heatedhousingmethod温室养护296)Acceleratedcuringbysteamorradiantheat通过蒸汽或辐射热加速养护29DLimitingtemperaturedifferentialsinnewlyplacedconcrete限制新摊铺混凝土的温差30Reconstructionofroadsectionkm2183-2217«BorderofRussianFederation(toSamara)-Shymkent»900-3913CONSTRUCTIONJOINTS施工缝30914EXPANSIONANDCONTRACTIONJOINTS伸缩缝32915WATERSTOPS止水32916FINISHESONUNFORMEDSURFACES路面成型33AUF1finish一类33BUF2finish二类33CUF3finish三类33DRoadwaysurfacefinish路面修整34917FINISHESONFORMEDSURFACES车道修整35AOrdinarysurfacefinish普通表面修整35BRubbedsurfacefinish磨光面修整36918FALSEWORKANDFORMWORK脚手架和模板37AFalsework脚手架37BFormwork模板38CRemovalofFalseworkandForms移除脚手架和模板41919MORTARANDGROUT砂浆和灰浆43AGeneral概述43BMortarforgeneralpurposes一般用途使用的砂浆43CGroutingofpocketsandholes凹穴和洞的灌浆43DUnderpinningofbaseplates基板的基础43920RECORDSOFCONCRETEPLACING混凝土摊铺记录44921REMEDIALWORKTODEFECTIVECONCRETE缺陷混凝土的修补工作44922REINFORCEMENTFORCONCRETE用于混凝土的钢筋45AGeneral概述45BTestingRequirements测试要求45CDeliveryandStorageofReinforcement钢筋的运送和储存45DBarbendingschedules弯钢筋表45EFabrication制造46FHandlingandsurfaceconditionofreinforcement钢筋处理及表面条件46GPlacingandfastening摊铺和加固46923SUBSTITUTIONBYBARSOFDIFFERENTSIZES替换以不同尺寸的钢筋条48Reconstructionofroadsectionkm2183-2217«BorderofRussianFederation(toSamara)-Shymkent»900-4924PRECASTCONCRETE预制混凝土48AGeneral一般要求48BFormworkforprecastunits预制组件模板48CReinforcementforprecastunits预制组件的钢筋48DCastingofprecastunits浇筑预制组件49ECuringprecastunits养护预制组件49FSurfacefinishofprecastunits预制组件表面抛光49GHandlingandstorageofprecastunits预制组件处理和储藏49HTestingprecastunits试验预制组件50IInstallationofprecastunits预制组件安装50925WEEPHOLES排水孔50926PILING打桩51AGeneral一般要求51BPrecastConcretePiles预制混凝土桩51CPileTests桩试验52DPileRecords桩记录53927PRECASTREINFORCEDCONCRETESTAIRSDOWNEMBANKMENTSIDESLOPEATENDOFOVERPASS在立交桥末端沿路堤边坡预制钢筋混凝土阶梯53Reconstructionofroadsectionkm2183-2217«BorderofRussianFederation(toSamara)-Shymkent»900-5901SCOPEOFSECTION章节范围Thissectioncoversthematerials,designofmixes,mixing,transport,placing,compactionandcuringofconcreteandmortarrequiredintheWorks.Italsocoversformworkandreinforcementforconcrete.本章节既包括工程中要求使用的材料，混合料设计，搅拌，运输，摊铺，压实和混凝土及砂浆的养护，还包括模板以及钢筋。902DEFINITIONS定义Structuralconcreteisanyclassofconcretewhichisusedinreinforced,prestressedornon-reinforcedconcreteconstruction,thatissubjecttostress.Non-structuralconcreteshallbeClassB20.结构混凝土是加固，预应力，或非钢筋混凝土结构（该结构承受压力）中所用的任何等级混凝土。非结构混凝土为等级B20。Non-structuralconcreteiscomposedofmaterialscomplyingwiththisspecificationandisusedonlyforfillingvoids,blindingfoundationsandsimilarpurposeswhereitisnotsubjectedtosignificantstress.非结构混凝土由符合规范的材料组成，并且只用于填补空隙、填塞基础以及类似的不承受主要压力的地方。Aformedsurfaceisafacethathasbeencastagainstformwork.成型表面是指在模板上已经浇筑完成的面。Anunformedsurfaceisahorizontalornearlyhorizontalsurfaceproducedwithoutusingformwork.未成型的表面是不使用模板而制造出来的水平或接近水平的表面。Apourreferstotheoperationofplacingconcreteintoanymould,bayorformwork,etc.,andalsotothevolumethathastobefilled.Poursinverticalsuccessionarereferredtoaslifts.浇筑是指结构物砼浇筑时任何形式砼的填筑。垂直作业的浇筑分层进行。Falseworkcomprisesthestructuralelementsthatinitiallysupportboththeformworkandtheplacedconcrete.脚手架由结构部件组成，结构部件最初是用于支撑模板和已摊铺的砼。Formworkisastructure,eithertemporaryorpermanent,providedtocontainfreshconcreteandsupportitintherequiredshapeuntilithashardened.模板是一个用于容纳新混凝土，支撑新混凝土凝固成形