Effect of Calcium Leaching on the Properties of Cement-based Composites

作     者：林威廷 鄭安 

作者机构：Institute of Nuclear Energy ResearchAtomic Energy Council Dept.of Civil EngineeringNational Ilan University 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2011年第26卷第5期

页      面：990-997页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：(1.Institute of Nuclear Energy Research, Atomic Energy Council, Taoyuan, Taiwan 32546, China 2.Dept. of Civil Engineering, National Ilan University, Ilan, Taiwan 26046, China 3.Dept. of Harbor and River Engineering, National Taiwan Ocean University, Keelung, Taiwan 20224, China 4.Dept. of Construction Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan 10607, China 5.School of Civil Engineering, Yantai University, Yantai 264005, China) 

主　　题：leaching slag silica fume X-ray diffraction analysis thermo gravimetric analysis 

摘      要：Leaching is one of the major factors that alter the mechanical properties of cement-based *** study is aimed to investigate the effect of leaching on the properties of cement-based *** with two water/cementitious ratios and two mineral admixtures were *** electrical potential was applied to accelerate the leaching *** strength test,scanning electronic microscopy,thermogravimetric analysis and X-ray diffraction analysis were *** results demonstrated that the calcium leaching reduced compressive strengths of concrete specimens,and such effect was prominent on the specimens without mineral *** leaching resistance increased with a decrease in water/cementitious ratio and an increase in amount of mineral *** mineral admixtures would reduce the amount of calcium hydroxide and refine the pore structure through pozzolanic reactions.A fair relationship was found between the calcium leaching and the compressive strength.