DB 41 河 南省地方标准 DB 41/T 826—2013 公路结构物耐久性混凝土技术规范 Technical Specifications for Durable Concrete of Highway Structures 2013 - 09 - 05发布 2013 - 11 - 05实施 河南省质量技术监督局 发布  DB 41/T826—2013 目 次 前言................................................................................II 1 2 3 4 范围 .............................................................................. 1 规范性引用文件 .................................................................... 1 术语和定义 ........................................................................ 1 基本规定 .......................................................................... 3 4.1 设计使用年限级别 .............................................................. 3 环境类别与作用等级 ............................................................ 3 4.2 5 6 耐久性指标 ........................................................................ 4 混凝土原材料 ...................................................................... 6 6.1 一般规定 ...................................................................... 6 水泥 .......................................................................... 6 矿物掺合料 .................................................................... 6 细集料 ........................................................................ 7 粗集料 ........................................................................ 7 水 ............................................................................ 8 外加剂 ........................................................................ 8 6.2 6.3 6.4 6.5 6.6 6.7 7 8 耐久性混凝土配合比设计 ............................................................ 8 混凝土施工 ....................................................................... 10 8.1 一般规定 ..................................................................... 10 原材料准备 ................................................................... 10 混凝土称量与拌制 ............................................................. 11 混凝土运输 ................................................................... 11 混凝土浇筑 ................................................................... 11 混凝土振捣 ................................................................... 11 混凝土养护 ................................................................... 12 拆模 ......................................................................... 13 8.2 8.3 8.4 8.5 8.6 8.7 8.8 9 质量检验 ......................................................................... 13 9.1 一般规定 ..................................................................... 13 施工前检验 ................................................................... 13 施工过程检验 ................................................................. 13 施工后检验 ................................................................... 13 9.2 9.3 9.4 I  DB 41/T826—2013 前 言 本标准按照 GB