桥梁混凝土结构工程.doc

SECTION 900 - CONCRETE WORKS
901 SCOPE OF SECTION
902 DEFINITIONS
903 MATERIALS FOR CONCRETE材料
A General
B 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 10
G Water for concrete and mortar混凝土和砂浆用水 10
H Admixtures and cementitious extenders外加剂和胶凝混合剂 10
904 THE DESIGN OF CONCRETE MIXES混凝土配合比设计 11
A Classes of concrete混凝土等级 11
B Design of proposed mixes配合比设计 11
905 SITE TRIAL MIXES现场试验 13
906 QUALITY CONTROL OF CONCRETE PRODUCTION混凝土拌和质量控制 13
A Sampling取样 13
B Testing试验 14
1)Consistence坍落度 14
2)Water/cement ratio水灰比 14
3)Air content孔隙率 14
4)Flakiness Index剥落度 14
5)Crushing concrete cubes抗压强度 14
C Valid cube results有效立方体试块结果 15
D Acceptance criteria for characteristic strength concrete高强度混凝土验收标准 15
E Non-compliant test results不符合规范的试验结果 15
907 MIXING CONCRETE混凝土 16
908 TRANSPORT OF CONCRETE混凝土运输 18
909 PLACING OF CONCRETE现浇混凝土 18
A Consent for placing允许浇注条件 18
B Preparation of surface to receive concrete表面准备以进行混凝土浇注 18
C Placing procedures浇注工序 19
D Placing concrete under water水下混凝土灌注 20
E Interruptions to placing灌注中断 22
F Dimensions of pours浇筑尺寸 22
G Placing sequence灌注工序 22
910 PROTECTION OF CONCRETE FROM THE ENVIRONMENT保护混凝土避受环境因素的破坏 23
A General概述 23
B Protection from rain保护混凝土免受雨水影响 23
C Hot weather precautions夏季防护措施 23
D Cold weather precautions冬季防护措施 24
1)Mixing and placing拌和及浇注 24
2)Initial curing初期养护 25
3)Placing concrete under water水下混凝土 25
E 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 25
F Waterproofing Buried Concrete Surfaces地下混凝土表面防水 25
911 COMPACTION OF CONCRETE混凝土抗压强度 26
912 CURING OF CONCRETE混凝土养护 27
A General概述 27
B Materials材料 28
C Methods of curing concrete养护方法 28
1)Formwork in-place method模板安装 28
2)Water method浸水法 28
3)Liquid membrane curing compound method液膜养护化合物法 28
4)Waterproof cover method防水盖 29
5)Heated housing method温室养护 29
6)Accelerated curing by steam or radiant heat通过蒸汽或辐射热加速养护 29
D Limiting temperature differentials in newly placed concrete限制新摊铺混凝土的温差 30
913 CONSTRUCTION JOINTS施工缝 30
914 EXPANSION AND CONTRACTION JOINTS伸缩缝 32
915 WATERSTOPS止水 32
916 FINISHES ON UNFORMED SURFACES路面成型 33
A UF 1 finish一类 33
B UF 2 finish二类 33
C UF 3 finish三类 33
D Roadway surface finish路面修整 34
917 FINISHES ON FORMED SURFACES车道修整 35
A Ordinary surface finish普通表面修整 35
B Rubbed surface finish磨光面修整 36
918 FALSEWORK AND FORMWORK脚手架和模板 37
A Falsework脚手架 37
B Formwork模板 38
C Removal of Falsework and Forms移除脚手架和模板 41
919 MORTAR AND GROUT砂浆和灰浆 43
A General概述 43
B Mortar for general purposes一般用途使用的砂浆 43
C Grouting of pockets and holes凹穴和洞的灌浆 43
D Underpinning of baseplates基板的基础 43
920 RECORDS OF CONCRETE PLACING混凝土摊铺记录 44
921 REMEDIAL WORK TO DEFECTIVE CONCRETE缺陷混凝土的修补工作 44
922 REINFORCEMENT FOR CONCRETE用于混凝土的钢筋 45
A General概述 45
B Testing Requirements测试要求 45
C Delivery and Storage of Reinforcement钢筋的运送和储存 45
D Bar bending schedules弯钢筋表 45
E Fabrication制造 46
F Handling and surface condition of reinforcement钢筋处理及表面条件 46
G Placing and fast