Analysis on Construction Technology of Mass Concrete for Raft Foundation
In order to improve the construction quality of mass concrete for raft foundation,taking an underground garage project in Guangdong province as an example,the paper analyzes the temperature time history of mass concrete for raft foundation,and puts forward the temperature control measures.The results show that the cross-sectional temperature of the raft increases first and then decreases with the increase of time.Fly ash and water reducing agent can reduce the temperature range of concrete to0.8%～3.7%;Horizontal circulation cooling water pipe can make the temperature index of mass concrete meet the design requirements.Concrete pouring temperature can be reduced effectively by adding fly ash and water reducing agent,setting horizontal circulation cooling water pipe and adopting dynamic curing technology.
国家科技期刊平台
NSTL
万方数据
