溶剂交换对水泥基材料微结构的影响  

Effect of Solvent Exchange on Microstructure of Cement-Based Materials-A Short Review

作　　者：张爱 葛勇[1] ZHANG Ai;GE Yong(School of Transportation Science and Engineering,Harbin Institute of Technology,Harbin 150000,China)

机构地区：[1]哈尔滨工业大学交通科学与工程学院,哈尔滨150000

出　　处：《硅酸盐学报》2023年第8期2098-2107,共10页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金青年项目(52208238);中国博士后科学基金面上项目(2022M710964)。

摘　　要：溶剂交换法广泛应用于水泥基材料的干燥和终止水化中。本文综述了溶剂交换对水泥浆体显微结构的影响。阐述了交换参数(样品尺寸、液-固比、交换时间和去除方法)的选取原则。重点论述了常见交换溶剂(异丙醇、丙酮、甲醇和乙醇)与水泥水化产物(氢氧化钙、水化硅酸钙和钙矾石)之间存在的物理化学反应。在交换参数和溶剂的影响下,对比分析了水泥基材料的孔结构参数(孔隙率和孔径分布)。最后提出了溶剂交换方法目前存在的问题及研究展望。Solvent exchange method is widely used in the drying and hydration termination of cement-based materials.This review represented the influence of solvent exchange on the microstructure of cement paste.The selection principle of exchange parameters(i.e.,sample size,liquid/solid ratio,exchange time and removal method)was described.The physical and chemical reactions between common exchange solvents(i.e.,isopropanol,acetone,methanol,and ethanol)and cement hydration products(i.e.,calcium hydroxide,calcium silicate hydrate and ettringite)were discussed.The pore structure parameters(i.e.,porosity and pore size distribution)of cement-based materials were analyzed under the influence of exchange parameters and solvents.In addition,the existing problems and research prospects of the solvent exchange method were also given.

关 键 词：溶剂交换 异丙醇 丙酮 甲醇 乙醇 微结构 

分 类 号：TU528[建筑科学—建筑技术科学]