内容简介
DB1506/T 25-2021复合封层设计与施工技术规范
Technical specification for design and construction of composite seal coat
2021-07-13发布
2021-10-29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 材料 ............................................................................... 3
5.1 一般规定 ....................................................................... 3
5.2 道路石油沥青 ................................................................... 3
5.3 SBS 改性沥青.................................................................... 4
5.4 橡胶沥青 ....................................................................... 4
5.5 乳化沥青 ....................................................................... 5
5.6 改性乳化沥青 ................................................................... 6
5.7 岩沥青 ......................................................................... 6
5.8 粗集料 ......................................................................... 7
5.9 细集料 ......................................................................... 7
5.10 填料 .......................................................................... 7
5.11 纤维 .......................................................................... 8
5.12 添加剂 ........................................................................ 8
5.13 水 ............................................................................ 8
6 结构类型与配合比设计 ............................................................... 8
6.1 一般规定 ....................................................................... 8
6.2 结构类型 ....................................................................... 8
6.3 配合比设计 ..................................................................... 9
6.4 间隔时间 ...................................................................... 11
7 施工 .............................................................................. 11
7.1 一般规定 ...................................................................... 11
7.2 下承层处理 .................................................................... 11
7.3 施工机械 ...................................................................... 11
7.4 碎石封层施工 .................................................................. 11
7.5 纤维碎石封层施工 .............................................................. 13
7.6 微表处施工 .................................................................... 13
8 质量管理与控制 .................................................................... 14
8.1 一般规定 ...................................................................... 14
8.2 施工前材料与设备检查 .......................................................... 14
8.3 施工过程中的质量控制 .......................................................... 16
8.4 交工验收 ...................................................................... 17
附录 A（规范性） 单位面积石料用量试验 ................................................18
附录 B（规范性） 碎石封层配合比设计的方法.............................................19
附录 C（规范性） 微表处配合比设计 ....................................................21
附录 D（规范性） 碎石封层和纤维碎石封层试验方法.......................................25
参考文献..............................................................................27