AN AGGREGATE-SPACE MODEL FOR SELF-COMPACTING CONCRETE
For the sake of the high workability, self-compacting concrete is generally prepared by the high content of cement and mineral admixture or fillers, the limited coarse aggregate volume and use of large amount of chemical admixture and etc. In this paper, the mechanism of self-compacting of fresh concrete was discussed and then an aggregate-space model for self-compacting concrete was proposed, aimed at further establishing the relationship between composition, microstructure and properties of self-compacting concrete(SCC) and developing a new mixing design method for SCC. Meanwhile, a parameter of aggregate-space coefficient was used to characterize this model. And the relationship between volume of aggregate and aggregate-space coefficient was established. Experiments were carried out to verify this model.
Guangeheng Long Youjun Xie Yunhuan Liu Zhiwu Yu
School of Civil Engineering and Architecture, Central South University,Changsha 410075,P.R.China School of Civil Engineering and Architecture,Central South University,Changsha 410075,P.R.China Quality and security administrating station of construction engineering,Chenzhou city 423000,P.R.Chi School of Civil Engineering and Architecture,Central South University, Changsha 410075,P.R.China
国际会议
长沙
英文
212-218
2009-06-05(万方平台首次上网日期,不代表论文的发表时间)