Effect of Crushed Air-cooled Blast Furnace Slag on Mechanical Properties of Concrete

作     者：王爱国 邓敏 

作者机构：State Key Laboratory of Materials-Oriented Chemical EngineeringCollege of Materials Science and EngineeringNanjing University of Technology Anhui Key Laboratory of Advanced Building MaterialsAnhui University of Architecture 

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：2012年第27卷第4期

页      面：758-762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：Funded by the National Basic Research Program of China(2009CB623105) the Natural Science Foundation of Education Agency of Anhui Province (KJ2012A052) the Anhui Provincial Natural ScienceFoundation(1208085ME82) the Doctor Fund of Anhui University of Architecture(20123302) 

主　　题：crushed air-cooled blast furnace slag crushed limestone mechanical property morphology characteristic interfacial structure 

摘      要：Morphology characteristics of mix aggregates with crushed air-cooled blast furnace slag（SCR） and crushed limestone（LCR） with 5-20 mm and 20-40 mm gradation were represented by numerical parameters including angularity number（AN） and index of aggregate particle shape and texture（IAPST）.The effect of mix aggregates containing SCR on compressive strength and splitting tensile strength of concrete was *** characteristics of concrete,interfacial structure between aggregates and matrix were *** experimental results show that porous and rough SCR increases contact area with matrix in concrete,concave holes and micro-pores on the surface of SCR are filled by mortar and hydrated cement paste,which may increase interlocking and mechanical bond between aggregate and matrix in *** can be used to produce a high-strength concrete with better mechanical properties than corresponding concrete made with *** increase of AN and IAPST of aggregate may enhance mechanical properties of concrete.