GB 50046-1995 工业建筑防腐蚀设计规范 英文版
1 General Provision
1.0.1 This code is formulated to prevent or reduce corrosion of corrosive medium to building and structure, and make anticorrosion design of industrial construction achieve state-of-art technology, economical rationality, safety and suitability and guarantee quality.
1.0.2 This code is applicable to anticorrosion design of industrial building and structure under action of corrosive medium; and it is not applicable to corrosion caused by stray current.
1.0.3 Anticorrosion design of building shall keep prevention first, comprehensively consider anticorrosion measures according to corrosiveness, ambient condition, production, operation, control level and repair condition, through adjusting measures to local conditions and carrying out different measures for difference. Protection shall be strengthened for location has great influence to production, locations endanger personal safety and difficult to be repaired, as well as important supporting member.
1.0.4 Not only the requirements about anticorrosion design of building stipulated in this code, but also those in current relevant ones of the nation shall be complied with.
2.0.1 Corrosiveness classification
According to damage extent of corrosive medium brings to constructional material, such as appearance change, weight change, loss in strength, corrosion velocity and other factors; and make an overall evaluation on corrosiveness level and divide into four levels: strong corrosion, medium corrosion, weak corrosion, and non-corrosion.
2.0.2 Corrosive water
It refers to water that contains negative and positive ion that have corrosive action on constructional material.
2.0.3 Contaminated soil
It refers to soil whose original physical mechanical property and chemical property change owing to action of corrosive medium.
2.0.4 Slightly soluble medium
It refers to alkali and salts medium whose solubility in water is less than 2g/l when at temperature of 20℃.
2.0.5 Soluble medium
It refers to alkali and salts medium whose solubility in water is equal to or about 2g/l when at temperature of 20℃.
2.0.6 Slightly hygroscopic medium
It refers to alkali and salts medium whose relative equilibrium humidity is equal to or about 60% when at temperature of 20℃.
2.0.7 Hygroscopic medium
It refers to alkali and salts medium whose relative equilibrium humidity is less than 60% when at temperature of 20℃.
2.0.8 Inhibitor of steel in concrete
It refers to additive blended into concrete for preventing or slowing down corrosion of reinforcing steel.
2.0.9 Glass-flake mastic resin
It refers to a kind of blending stock that taking resin as cementing agent, added glass flake and powder lot and used for scraping construction.
3 Basic requirements