Effect of Limestone Powder on Microstructure of Concrete

被引：85

作者：

Liu Shuhua ^{[1
]}

Yan Peiyu ^{[2
]}

机构：

[1] Wuhan Univ, State Key Lab Water Resource & Hydropower Engn Sc, Wuhan 430072, Peoples R China

[2] Tsinghua Univ, Dept Civil Engn, Beijing 100084, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2010年 / 25卷 / 02期

基金：

高等学校博士学科点专项科研基金;

关键词：

concrete; limestone powder; microstructure; filling effect; hydration characteristic; PORTLAND-CEMENT; HYDRATION; STRENGTH;

D O I：

10.1007/s11595-010-2328-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of limestone powder on microstructure of concrete was studied by using mercury intrusion porosimetry (MIP), backscattering scanning electron(BSE), scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. The experimental results show that the compressive strength of concrete containing 100 kg/m(3) limestone powder can meet the strength requirement. Limestone powder has not pozzolanic activity; it is still unhydrated at the age of 28 days. But its filling effect can make the paste matrix and the interfacial transition zone between matrix and aggregate denser, which will improve the performance of concrete.

引用

页码：328 / 331

页数：4

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