Influence ofw/c ratio on rate of chloride induced corrosion of steel reinforcement and its dependence on ambient temperature
- 63 Downloads
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 w/c ratio over the value 0.6 and the ambient temperature over the value 40†C are increased.
Due to the similarity of the chemism of the corrosion process of steel reinforcement, independent of the action of aggressive species, the found relationships are generally valid, e.g. for the corrosion due to carbonation.
Key wordsChloride induced corrosion steel reinforcement rate water-cement ratio ambient temperature rate prediction
Unable to display preview. Download preview PDF.
- Aitkin P C 1994Concrete technology, past, present and future, inProc. of V Mohan Malhotra symposium (Detroit: Ameri- can Concrete Institute) p. 85Google Scholar
- Basher P M, Long A E and Montgomery F R 1995Concrete technology, past, present and future, inProc. of V Mohan Malhotra symposium(Detroit: American Concrete Institute) p. 213Google Scholar
- Reinhardt H W 1992Material science of concrete (ed.) J Skalny (Westerville: Am. Ceram. Soc.) p. 209Google Scholar
- Živica V 1995Mater. & Struct. 18 115Google Scholar
- Živica V 2002Bull. Mater. Sci. 25 375Google Scholar