GBT51241-2017······1

1 總則······11

2 術語和縮略語······12

2.1 術語······12

2.2 縮略語······13

3 基本規定······14

4 補口防腐層分類和選用······15

5 涂敷工藝和評定······17

5.1 施工工藝規程······17

5.2 工藝評定試驗······18

5.3 施工前試驗······18

6 表面處理······19

6.1 鋼材表面處理······19

6.2 搭接區的防腐層處理······20

7 熱收縮材料補口······21

7.1 補口材料······21

7.2 補口施工······30

7.3 補口質量檢驗······31

8 液體涂料補口······34

8.1 補口防腐層······34

8.2 補口材料······34

8.3 補口施工······38

8.4 補口質量檢驗······39

9 聚合物膠粘帶補口······42

9.1 補口材料······42

9.2 補口施工······45

9.3 補口質量檢驗······46

10 黠彈體膠帶補口······48

10.1 補口防腐層······48

10.2 補口材料······48

10.3 補口施工······51

10.4 補口質量檢驗······52

11 環氧粉末補口······55

11.1 補口防腐層結構······55

11.2 補口材料······55

11.3 補口防腐層施工和質量檢驗······58

12 交工文件······60

附錄A 滴垂試驗方法······61

附錄B 壓敏膠吸水性試驗方法······62

附錄C 補口防腐層耐熱水浸泡試驗方法······64

附錄D 防腐層絕緣電阻試驗方法······66

本規范用詞說明······68

引用標準名錄······69

附: 條文說明······71

1 總則······75

2 術語和縮略語······76

2.1 術語······76

3 基本規定······77

4 補口防腐層分類和選用······78

5 涂敷工藝和評定······79

5.1 施工工藝規程······79

5.2 工藝評定試驗······79

5.3 施工前試驗······80

6 表面處理······81

6.1 鋼管表面處理······81

6.2 搭接區的防腐層處理······81

7 熱收縮材料補口······82

7.1 補口材料······82

7.2 補口施工······83

7.3 補口質量檢驗······84

8 液體涂料補口······86

8.1 補口防腐層······86

8.2 補口材料······86

8.3 補口施工······87

8.4 補口質量檢驗······87

9 聚合物膠粘帶補口······88

9.1 補口材料······88

9.2 補口施工······88

9.3 補口質量檢驗······89

10 黠彈體膠帶補口······90

10.1 補口防腐層······90

10.2 補口材料······90

10.3 補口施工······90

10.4 補口質量檢驗······91

11 環氧粉末補口······92

11.1 補口防腐層結構······92

11.2 補口材料······92

11.3 補口防腐層施工和質量檢驗······92

12 交工文件······94