硅酸盐通报2018，Vol.37Issue(3)：749-754,6.
低温(3℃)养护条件下不同水胶比对引气混凝土孔结构参数及抗渗性的影响
Effects of Different Water-binder Ratio on Pore Structure Parameters and Impermeability of Air-entraining Concrete at Low Temperature(3 ℃)
摘要
Abstract
Aimed at the cast-in-place concrete in western cold and saline soil area,the effects of different water-binder ratio on the pore structure parameters and impermeability of air-entraining concrete at low temperature(3 ℃).The results show that with the increase of water-binder ratio, the porosity and the spacing factor of the air-entraining concrete show an increasing trend, under the condition of low temperature curing, the porosity and the spacing factor are larger than the standard curing conditions;under the conditions of low temperature curing, the main pore size distribution of concrete is obviously higher than that under the standard curing condition and the impermeability of concrete is less than that under the standard curing condition;with the increase of water-binder ratio,the resistance to chloride ion permeability decreased, the larger water-binder ratio increase, and the faster the impermeability decrease.The electric flux and chloride migration coefficient of concrete show a high positive and negative correlation with the parameters of concrete pore structure(porosity, spacing factor, pore size distribution).关键词
引气混凝土/水胶比/孔结构/抗渗性Key words
air-entraining concrete/water-binder ratio/pore structure/impermeability分类
建筑与水利引用本文复制引用
梁柯鑫,王起才,张凯,张戎令,崔晓宁,李进前..低温(3℃)养护条件下不同水胶比对引气混凝土孔结构参数及抗渗性的影响[J].硅酸盐通报,2018,37(3):749-754,6.基金项目
国家自然科学基金(51268032) （51268032）
长江学者和创新团队发展计划滚动支持(IRT_15R29) （IRT_15R29）
甘肃省基础研究创新群体(145RJIA332) （145RJIA332）
兰州交通大学(201606)优秀平台资助 （201606）
