抄録
This report deals with the effects of normal air temperature obtained from 3 measurement periods(1961-1990,1971-2000,1981-2010) on change of applicable period of cold weather concreting and maturity related to construction plan. According to the results of this study, it made clear that applicable period of cold weather concreting based on latest normal value is shorter than the previous period which are described in JASS5-2009. And maturity based on latest normal value is also bigger than the maturity based on previous normal value.
