GB/T50046-2018：工业建筑防腐蚀设计标准

GBT50046-2018······1

1 总则······12

2 术语······13

3 基本规定······14

3.1 腐蚀性分级······14

3.2 总平面及建筑布置······20

3.3 防护层设计使用年限······21

4 结构和构件······22

4.1 一般规定······22

4.2 混凝土结构······22

4.3 钢结构······25

4.4 钢与混凝土组合结构······26

4.5 砌体结构······26

4.6 木结构······27

4.7 地基······27

4.8 基础······28

4.9 桩基础······30

5 建筑防护······34

5.1 地面······34

5.2 结构及构件的表面防护······42

5.3 门窗······45

5.4 屋面······45

5.5 墙体······46

6 构筑物······47

6.1 储槽、污水处理池······47

6.2 室外管架······49

6.3 排气筒······50

7 材料······52

7.1 一般规定······52

7.2 水泥砂浆和混凝土······52

7.3 耐腐蚀块材······54

7.4 金属······54

7.5 塑料······54

7.6 木材······55

7.7 树脂类材料······55

7.8 水玻璃类材料······55

7.9 沥青类材料······56

7.10 防腐蚀涂料······56

附录A 常用材料的耐腐蚀性能······58

附录B 常用材料的物理力学性能······61

附录C 防腐蚀涂层配套······63

附录D 树脂砂浆和树脂混凝土线收缩率试验检验方法······71

本标准用词说明······73

引用标准名录······74

附:条文说明······76

1 总则······80

2 术语······82

3 基本规定······84

3.1 腐蚀性分级······84

3.2 总平面及建筑布置······91

3.3 防护层设计使用年限······92

4 结构和构件······94

4.1 一般规定······94

4.2 混凝土结构······95

4.3 钢结构······99

4.4 钢与混凝土组合结构······102

4.5 砌体结构······103

4.6 木结构······104

4.7 地基······104

4.8 基础······106

4.9 桩基础······108

5 建筑防护······111

5.1 地面······111

5.2 结构及构件的表面防护······116

5.3 门窗······118

5.4 屋面······118

5.5 墙体······119

6 构筑物······120

6.1 储槽、污水处理池······120

6. 2 室外管架······123

6.3 排气筒······123

7 材料······126

7.1 一般规定······126

7.2 水泥砂浆和混凝土······126

7.3 耐腐蚀块材······130

7.4 金属······131

7.5 塑料······132

7.6 木材······132

7.7 树脂类材料······132

7.8 水玻璃类材料······133

7.9 沥青类材料······134

7.10 防腐蚀涂料······134

附录C 防腐蚀涂层配套······136