Abstract
Concrete cooled to very low temperature cyclically is deteriorated by ice formation in mien-pores. Although the factors to the deterioration are various, storage at very low temperature is mentioned as one of the factors. In practice, storage of cryogenic structure is kept at very low temperatures, and as such, it is important to take into consideration the influence of storage at such low temperature on the deterioration of concrete. It is expected that the cooling rate and minimum temperature have a close relationship to each other in the concrete deterioration process. Thus, in this study, the influence of storage on the deterioration of concrete at various minimum temperatures and cooling rates was researched on, taking into consideration the different W/C and air content.
