GBT51241-2017······1
1 总则······11
2 术语和缩略语······12
2.1 术语······12
2.2 缩略语······13
3 基本规定······14
4 补口防腐层分类和选用······15
5 涂敷工艺和评定······17
5.1 施工工艺规程······17
5.2 工艺评定试验······18
5.3 施工前试验······18
6 表面处理······19
6.1 钢材表面处理······19
6.2 搭接区的防腐层处理······20
7 热收缩材料补口······21
7.1 补口材料······21
7.2 补口施工······30
7.3 补口质量检验······31
8 液体涂料补口······34
8.1 补口防腐层······34
8.2 补口材料······34
8.3 补口施工······38
8.4 补口质量检验······39
9 聚合物胶粘带补口······42
9.1 补口材料······42
9.2 补口施工······45
9.3 补口质量检验······46
10 黠弹体胶带补口······48
10.1 补口防腐层······48
10.2 补口材料······48
10.3 补口施工······51
10.4 补口质量检验······52
11 环氧粉末补口······55
11.1 补口防腐层结构······55
11.2 补口材料······55
11.3 补口防腐层施工和质量检验······58
12 交工文件······60
附录A 滴垂试验方法······61
附录B 压敏胶吸水性试验方法······62
附录C 补口防腐层耐热水浸泡试验方法······64
附录D 防腐层绝缘电阻试验方法······66
本规范用词说明······68
引用标准名录······69
附: 条文说明······71
1 总则······75
2 术语和缩略语······76
2.1 术语······76
3 基本规定······77
4 补口防腐层分类和选用······78
5 涂敷工艺和评定······79
5.1 施工工艺规程······79
5.2 工艺评定试验······79
5.3 施工前试验······80
6 表面处理······81
6.1 钢管表面处理······81
6.2 搭接区的防腐层处理······81
7 热收缩材料补口······82
7.1 补口材料······82
7.2 补口施工······83
7.3 补口质量检验······84
8 液体涂料补口······86
8.1 补口防腐层······86
8.2 补口材料······86
8.3 补口施工······87
8.4 补口质量检验······87
9 聚合物胶粘带补口······88
9.1 补口材料······88
9.2 补口施工······88
9.3 补口质量检验······89
10 黠弹体胶带补口······90
10.1 补口防腐层······90
10.2 补口材料······90
10.3 补口施工······90
10.4 补口质量检验······91
11 环氧粉末补口······92
11.1 补口防腐层结构······92
11.2 补口材料······92
11.3 补口防腐层施工和质量检验······92
12 交工文件······94
