Influence of Mineral Admixtures on the Permeability of Lightweight Aggregate Concrete

作     者：王发洲 

作者机构：Key Laboratory of Silicate Materials Science and Engineering Ministry of Education Wuhan University of TechnologyWuhan 430070China Ph D 

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：2005年第20卷第2期

页      面：115-118页

核心收录：

学科分类：08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 

基　　金：FundedbytheNationalHightechnology"863"Project(No.2002AA335080) 

主　　题：LC mineral admixture chloride penetrability test interface self-reinforcing effect 

摘      要：The permeability of lightweight aggregate concrete was studied. Some efforts were taken to increase the resistance of lightweight aggregate concrete (LC) to water penetration by using the mineral admixtures of fly ash, granulated blast furnace slag or silica fume. Accelerated chloride penetrability test and liquid atmosphere press method were used to study the anti-permeability of lightweight aggregate concrete. The experimental results show that fly ash, granulated blast furnace slag and silica fume can decrease the permeability of lightweight aggregate concrete, but the effect of granulated blast furnace slag is poor. According to the SEM and pore structure analyzing results,an interface self-reinforcing effect model was presented and the reinforced mechanism of mineral mixture on LC was discussed according to the model described by authors.