Study on Abrasion Resistance,Chloride Permeability and Microstructure of Concrete Containing Nanoparticles

摘要：

The abrasion resistance and chloride permeability of concrete containing nano-SiO2 in the amount of 3％ by the weight of binder and nano-TiO2 in the amount of respective 5％ and 10％ by the weight of binder were experimentally studied and compared with that of plain concrete with the same water-binder ratio.The results showed that the abrasion resistance and resistance to chloride penetration of concrete containing 3％ nano-SiO2 and 5％ nano-TiO2 were higher than that of plain concrete,simultaneity,the results of mercury intrusion porosimetry(MIP)test showed that the average pore diameter and the most probable pore diameter of cement paste mixed nanoparticles were smaller than that of plain concrete,the pore structures of cement paste were refined by nanoparticles mixed.Final the SEM study of cement paste microstructure also confirmed the aforementioned results.The origin of nanoparticles improving abrasion resistance and resistance to chloride penetration of concrete was also presented from the microstructure standpoint.

关键词： Nanoparticles Smart materials Concrete Durability Abrasion Chloride permeability

作者: Chengming LAN Rongshi WANG Jie YUAN Huigang XIAO Hui LI

作者单位: School of Civil Engineering,Harbin Institute of Technology,Harbin,China Tianjin Highway Bureau,Tianjin,China School of Material Science and Engineering,Harbin Institute of Technology,Harbin,China

会议类型: 国际会议

会议名称: The World Forum on Smart Materials and Smart Structures Technology(SMSST07)(2007年世界智能材料与智能结构技术论坛)

会议地点: 重庆·南京

会议语种:英文

在线出版日期: 2007-05-01（万方平台首次上网日期，不代表论文的发表时间）