Effects of Calcined Diatomite on Resistance to Permeability and Freeze-thaw of Recycled Aggregate Concrete (RAC)

摘要：

　　The sustainable development of human society makes necessary the research on and the use of RAC.For the purpose of enlarging its application range,both lowering cost and enhancing properties of RCA are worth being done.This paper aims at improving RACs resistance to permeability and freeze-thaw with a lower addition amount of calcined diatomite compared with silicon fume.Therefore,the main study on effects of calcined diatomite on resistance to permeability and freeze-thaw is carried out through comparison experiments.Research results indicate that the calcined diatomite of 2% added is able to decrease relative penetration coefficient by 59%,the strength loss by 4.9% and the relative strength loss by 3.3%.Obviously,the lower addition of calcined diatomite could achieve good effects,which arrived at the goal of this paper.

关键词： Calcined diatomite RAC Resistance to permeability Freeze-thaw resistance

作者: Yongqi Wei Yunfang Meng Qinghe Sun

作者单位: College of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021,China

会议类型: 国际会议

会议名称: the Second International Conference on Frontiers of Manufacturing and Design Science(第二届制造与设计科学国际会议(ICFMD 2011))

会议地点: 台湾

会议语种:英文

页码: 2690-2694

在线出版日期: 2011-12-11（万方平台首次上网日期，不代表论文的发表时间）