OPTIMIZATION OF THE FABRICATION TECHNOLOGY OF SELF-COMPACTING HIGH PERFORMANCE CONCRETE

摘要：

High-efficient composite water-reducing agent is used as superplasticizer agent and Ultra-fine Fly Ash Composition(UFAC)is adopted to improve the gradation of cementitious materials.The yield shearing stress of fresh concrete is reduced as much as possible and the concrete mix is made to comply with the required flowability of self-compaction.The optimization experiment of the mixture parameters of self-compacting High Performance Concrete(SCHPC)is carried out with such control parameters as slump,slump spread and Vl.The experimental results show the optimization of the key parameters of the mix design of C50-C60 SCHPC is: the total cementitious materials is between 500-600kg/m3; the appropriate sand ratio is between 35％-45％; UFAC replace 30％-45％ of cementitious materials; water consumption unit concrete and the proportion of high-efficient water-reducing agent can be fixed through performance experiments.

作者: Jian Yin Youjun Xie Zhiwu Yu

作者单位: School of Civil Engineering and Architecture,Central South University,Changsha,China School of Mater School of Civil Engineering and Architecture,Central South University,Changsha,China

会议类型: 国际会议

会议名称: 第一届自密实混凝土设计、性能及应用国际研讨会(1st International Symposium on Design,Performance and Use of Self-Consolidating Concrete SCC2005-China)

会议地点: 长沙

会议语种:英文

页码: 97-107

在线出版日期: 2005-05-26（万方平台首次上网日期，不代表论文的发表时间）