Reconstruction of road section km 2183-2217 Border of Russian Federation (to Samara)-ShymkentSECTION 900 - CONCRETE WORKS901 SCOPE OF SECTION902 DEFINITIONS903 MATERIALS FOR CONCRETE材料A GeneralB Cement水泥C General requirements for aggregates一般规格的骨料D Fine aggregate细集料E Coarse aggregate粗骨料F Testing aggregates骨料试验1) Acceptance testing验收测试2) Compliance testing顺应性测试10G Water for concrete and mortar混凝土和砂浆用水10H Admixtures and cementitious extenders外加剂和胶凝混合剂10904 THE DESIGN OF CONCRETE MIXES混凝土配合比设计11A Classes of concrete混凝土等级11B Design of proposed mixes配合比设计11905 SITE TRIAL MIXES现场试验13906 QUALITY CONTROL OF CONCRETE PRODUCTION混凝土拌和质量控制13A Sampling取样13B Testing试验141) Consistence坍落度142) Water/cement ratio水灰比143) Air content孔隙率144) Flakiness Index剥落度145) Crushing concrete cubes抗压强度14C Valid cube results有效立方体试块结果15D Acceptance criteria for characteristic strength concrete高强度混凝土验收标准15E Non-compliant test results不符合规范的试验结果15907 MIXING CONCRETE混凝土16908 TRANSPORT OF CONCRETE混凝土运输18909 PLACING OF CONCRETE现浇混凝土18A Consent for placing允许浇注条件18B Preparation of surface to receive concrete表面准备以进行混凝土浇注18C Placing procedures浇注工序19D Placing concrete under water水下混凝土灌注20E Interruptions to placing灌注中断22F Dimensions of pours浇筑尺寸22G Placing sequence灌注工序22910 PROTECTION OF CONCRETE FROM THE ENVIRONMENT保护混凝土避受环境因素的破坏23A General概述23B Protection from rain保护混凝土免受雨水影响23C Hot weather precautions夏季防护措施23D Cold weather precautions冬季防护措施241) Mixing and placing拌和及浇注242) Initial curing初期养护253) Placing concrete under water水下混凝土25E Protection from soil or water with high sulphate content防护混凝土免受高硫酸盐土壤或水的影响25F Waterproofing Buried Concrete Surfaces地下混凝土表面防水25911 COMPACTION OF CONCRETE混凝土抗压强度26912 CURING OF CONCRETE混凝土养护27A General概述27B Materials材料28C Methods of curing concrete养护方法281) Formwork in-place method模板安装282) Water method浸水法283) Liquid membrane curing compound method液膜养护化合物法284) Waterproof cover method防水盖295) Heated housing method温室养护296) Accelerated curing by steam or radiant heat通过蒸汽或辐射热加速养护29D Limiting temperature differentials in newly placed concrete限制新摊铺混凝土的温差30913 CONSTRUCTION JOINTS施工缝30914 EXPANSION AND CONTRACTION JOINTS伸缩缝32915 WATERSTOPS止水32916 FINISHES ON UNFORMED SURFACES路面成型33A UF 1 finish一类33B UF 2 finish二类33C UF 3 finish三类33D Roadway surface finish路面修整34917 FINISHES ON FORMED SURFACES车道修整35A Ordinary surface finish普通表面修整35B Rubbed surface finish磨光面修整36918 FALSEWORK AND FORMWORK脚手架和模板37A Falsework脚手架37B Formwork模板38C Removal of Falsework and Forms移除脚手架和模板41919 MORTAR AND GROUT砂浆和灰浆43A General概述43B Mortar for general purposes一般用途使用的砂浆43C Grouting of pockets and holes凹穴和洞的灌浆43D Underpinning of baseplates基板的基础43920 RECORDS OF CONCRETE PLACING混凝土摊铺记录44921 REMEDIAL WORK TO DEFECTIVE CONCRETE缺陷混凝土的修补工作44922 REINFORCEMENT FOR CONCRETE用于混凝土的钢筋45A General概述45B Testing Requirements测试要求45C Delivery and Storage of Reinforcement钢筋的运送和储存45D Bar bending schedules弯钢筋表45E Fabrication制造46F Handling and surface condition of reinforcement钢筋处理及表面条件46G Placing and fastening摊铺和加固46923 SUBSTITUTION BY BARS OF DIFFERENT SIZES替换以不同尺寸的钢筋条48924 PRECAST CONCRETE预制混凝土48A General一般要求48B Formwork for precast units预制组件模板48C Reinforcement for precast units预制组件的钢筋48D Casting of precast units浇筑预制组件49E Curing precast units养护预制组件49F Surface finish of precast units预制组件表面抛光49G Handling and storage of precast units预制组件处理和储藏49H Testing precast units试验预制组件50I Installation of precast units预制组件安装50925 WEEPHOLES排水孔50926 PILING打桩51A General一般要求51B Precast Concrete Piles预制混凝土桩51C Pile Tests桩试验52D Pile Records桩记录53927 PRECAST REINFORCED CONCRETE STAIRS DOWN EMBANKMENT SIDE SLOPE AT END OF OVERPASS在立交桥末端沿路堤边坡预制钢筋混凝土阶梯53901 SCOPE OF SECTION章节范围This section covers the materials, design of mixes, mixing, transport, placing, compaction and curing of concrete and mortar required in the Works. It also covers formwork and reinforcement for concrete.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。902 DEFINITIONS定义Structural concrete is any class of concrete which is used in reinforced, prestressed or non-reinforced concrete construction, that is subject to stress. Non-structural concrete shall be Class B20.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-structural concrete is composed of materials complying with this specification and is used only for filling voids, blinding foundations and similar purposes where it is not subjected to significant stress.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。A formed surface is a face that has been cast against formwork.成型表面是指在模板上已经浇筑完成的面。An unformed surface is a horizontal or nearly horizontal surface produced without using formwork.未成型的表面是不使用模板而制造出来的