内容简介
DB4401/T 89-2020预制构件用座浆料应用技术规程
Technical specification for application of dry-mixed bedding mortar for precast concrete components
2020- 07- 23 发布
2020- 09- 01实施
目 次
前言...................................................................................................................................................................1
1范围................................................................................................................................................................. 1
2规范性引用文件.............................................................................................................................................1
3术语和定义.....................................................................................................................................................1
4基本规定.........................................................................................................................................................2
5座浆料............................................................................................................................................................. 2
5.1一般规定.................................................................................................................................................2
5.2原材料.....................................................................................................................................................2
5.3性能要求和试验方法.............................................................................................................................2
6设计................................................................................................................................................................. 3
6.1一般规定.................................................................................................................................................3
6.2装配式混凝土结构建筑工程坐浆设计................................................................................................ 3
6.3预制拼装墩台拼装坐浆设计.................................................................................................................3
7材料进场.........................................................................................................................................................3
7.1进场检验.................................................................................................................................................3
7.2检验批与取样.........................................................................................................................................4
8施工................................................................................................................................................................. 4
8.1一般规定.................................................................................................................................................4
8.2施工准备.................................................................................................................................................4
8.3拌合.........................................................................................................................................................4
8.4装配式混凝土结构建筑工程坐浆施工................................................................................................ 4
8.5预制拼装墩台拼装坐浆施工.................................................................................................................5
8.6高温施工.................................................................................................................................................5
8.7养护.........................................................................................................................................................5
9验收................................................................................................................................................................. 5
附录 A（规范性附录） 跳桌流动度试验..........................................................................................................6
附录 B（规范性附录） 强度试验......................................................................................................................7
附录 C（规范性附录） 竖向膨胀率试验..........................................................................................................8
附录 D（资料性附录） 条文说明......................................................................................................................9
本标准按GB/T 1.1—2009《标准化工作导则第1部分：标准的结构和编写》的规定起草。
本标准由广州市住房和城乡建设局提出并归口。