LEACHING OF CEMENTITIOUS COMPOSITES: ANALYSIS OF MICROSTRUCTURE EVOLUTIONS WITH X-RAY COMPUTED MICROTOMOGRAPHY

摘要：

Leaching of cementitious materials leads to an increase in porosity, which has important consequences on their transport and mechanical properties. The present study outlines the characterization of the microstructure evolution of a mortar subjected to a chemical attack, by means of one of the most powerful non-intrusive experimental method, namely synchrotron X-ray computed microtomography. This innovative method is used to measure the variation of porosity of a leached mortar. Having described the effects of leaching on mortar (influences on microstructure and on mechanical properties) we present the accelerated leaching process and the microtomographic analysis that have been used.

作者: N.Burlion D.Bernard D.Chen P.Cheng

作者单位: Laboratoire de Mécanique de Lille, France Institut de Chimie de la Matière Condensée de Bordeaux, France Laboratoire de Mécanique de Lille, France HoHai University, Nanjing210098,R.R.China

会议类型: 国际会议

会议名称: 第二届国际应力-水流-热-化学耦合学术大会(2nd International Conference on Coupled Thermo-Hydro-Mechanical Processes in Geosystems and Engineering：Geoproc2006)

会议地点: 南京

会议语种:英文

页码: 30-36

在线出版日期: 2006-05-22（万方平台首次上网日期，不代表论文的发表时间）