JGJ/T152-2019：混凝土中钢筋检测技术标准

JGJT152-2019······1

1 总则······11

2 术语和符号······12

2.1 术语······12

2.2 符号······12

3 基本规定······14

4 混凝土保护层厚度和钢筋间距检测······15

4.1 一般规定······15

4.2 抽样规定······15

4.3 仪器性能要求······15

4.4 电磁感应法······16

4.5 雷达法······17

4.6 直接法······18

4.7 检测数据处理及结果评定······19

5 钢筋公称直径检测······21

5.1 一般规定······21

5.2 抽样规定······21

5.3 取样称量法······21

5.4 直接法······23

5.5 检测结果评定······24

6 钢筋力学性能检测······25

6.1 一般规定······25

6.2 抽样规定······25

6.3 检测结果评定······26

7 钢筋锈蚀性状检测······27

7.1 一般规定······27

7.2 仪器性能要求及维护······27

7.3 半电池电位法······28

7.4 检测结果评判······30

8 钢筋锈蚀性状监测······32

8.1 一般规定······32

8.2 仪器性能要求······32

8.3 钢筋锈蚀动态监测技术······33

9 基桩钢筋笼长度检测······35

9.1 一般规定······35

9.2 设备要求······35

9.3 磁测井法······35

9.4 检测数据处理······36

附录A 电磁感应法钢筋探测仪的校准方法······38

附录B 雷达仪校准方法······40

附录C 混凝土电阻率检测······42

本标准用词说明······44

引用标准名录······45

附: 条文说明······47

1 总则······50

3 基本规定······51

4 混凝土保护层厚度和钢筋间距检测······52

4.1 一般规定······52

4.3 仪器性能要求······52

4.4 电磁感应法······53

4.5 雷达法······54

5 钢筋公称直径检测······55

5.2 抽样规定······55

5.3 取样称量法······55

5.5 检测结果评定······55

6 钢筋力学性能检测······56

6.1 一般规定······56

6.2 抽样规定······56

6.3 检测结果评定······56

7 钢筋锈蚀性状检测······57

7.1 一般规定······57

7.2 仪器性能要求及维护······57

7.3 半电池电位法······58

7.4 检测结果评判······58

8 钢筋锈蚀性状监测······59

8.1 一般规定······59

8.2 仪器性能要求······59

8.3 钢筋锈蚀动态监测技术······59

9 基桩钢筋笼长度检测······63

9.1 一般规定······63

9.3 磁测井法······63

附录A 电磁感应法钢筋探测仪的校准方法······64

附录C 混凝土电阻率检测······65