Maximum Continuous Aperture of the Low W/C Concrete

摘要：

Four kinds of the low W/C concrete were prepared using Portland cement, fly-ash, slag and limestone powder. The chloride ion diffusion coefficient was determinated by the electrical conductivity and the pore structure parameters were measured by the mercury intrusion porosimetry(MIP). The maximum continuous apertures are determined by the correlation between the cumulatived pore volume of different pore size and the chloride ion diffusion coefficient. The results show that the cumulative pore volume and the chloride ion diffusion coefficient is well correlated when the pore size is 60nm-100nm, the correlation coefficient R2>0.80, and the maximum continuous aperture of the low W/C concrete is approximate 80nm.

关键词： chloride ion penetration maximum continuous aperture cumulative pore volume linearity correlation low W/C concrete

作者: J. Q. Wen W. S. Zhang J. B. Zhang

作者单位: China building materials academy, State key laboratory of green building materials,Beijing 100024 China building materials academy,State key laboratory of green building materials,Beijing 100024 China building materials academy,State key laboratory of green building materials, Beijing 100024

会议类型: 国际会议

会议名称: The 7th International Symposium on Cement & Concrete(ISCC2010)、The 11th International Conference on Advance in Concrete Technology and Sustainable Development(第七届水泥与混凝土国际会议暨第11届混凝土技术可持续发展国际会议)

会议地点: 济南

会议语种:英文

页码: 380-385

在线出版日期: 2010-05-09（万方平台首次上网日期，不代表论文的发表时间）