PREDICTION OF CONCRETE RESISTANCE TO CHLORIDE PENETRATION BY HEATING UP CURING AT EARLY AGES

摘要：

In this study,the indexes of concrete resistance to chloride penetration are tested byheating up curing and standard curing separately and the relationship between the indexes isanalyzed. The results indicate that there is close relation between the indexes. Then theempirical formula for predicting the concrete resistance to chloride penetration at early agesby heating up curing is established and the experimental procedures are determined. The timeof determining the quantity of electric charge of marine concrete (ASTM C1202) is shortenedfrom 28 days to 4 days through this method,and the time of determining the concrete chloridediffusion coefficient (NT BUILD 443) is shortened from 130 days to 43 days. Thus,theconventional testing cycle of concrete resistance to chloride penetration is greatly shortened,which is of great importance to construction quality control and mix proportion design tomarine concrete durability index.

关键词： early prediction heating up curing durability high-performance concrete

作者: Dongdong Wang Weili Tian Chengqi Wang Zaoyang Zhang Beiling Shi

作者单位: Shanghai Third Harbour Engineering Science & Technology Research Institute Co.,Ltd,Shanghai,PR China Science and Technology Department of Third Harbor Engineering Company of China Communication Constru

会议类型: 国际会议

会议名称: The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)

会议地点: 杭州

会议语种:英文

页码: 246-253

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）