Influence of �?/�? ratio on rate of chloride induced corrosion of steel reinforcement and its dependence on ambient temperature

[摘要] The permeability of the embedding cement material for the rate of chloride induced corrosion when the ambient temperature is increased has found a dominant position. The importance of the given permeability in the process is based on the fact that it represents a factor conditioning the possibility of the escaping of the unambiguous reaction partners, oxygen and water vapour, from the system embedding cement material-steel, as the ambient temperature is increased. The resulting effect is a slowing down of the corrosion rate when the ð‘�?/ð‘�? ratio over the value 0.6 and the ambient temperature over the value 40°C are increased.

[学科分类] 材料工程

[关键词] Chloride induced corrosion;steel reinforcement;rate;water-cement ratio;ambient temperature;rate prediction.