Aggregate-cement paste interface Part I. Influence of aggregate geochemistry

被引：146

作者：

Tasong, WA ^{[1
]}

Lynsdale, CJ ^{[1
]}

Cripps, JC ^{[1
]}

机构：

[1] Univ Sheffield, Dept Civil & Struct Engn, Ctr Cement & Concrete, Sheffield S1 3JD, S Yorkshire, England

来源：

CEMENT AND CONCRETE RESEARCH | 1999年 / 29卷 / 07期

关键词：

reaction; interfacial transition zone; microstructure; bond strength; aggregate geochemistry;

D O I：

10.1016/S0008-8846(99)00086-1

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The influence of aggregate geochemical properties on the development of the microstructure and bond strength at the interfacial transition zone (ITZ) between aggregate and the hydrating cement paste was studied. The mineral phases and microstructure at the ITZs of three commonly used concrete aggregates (quartzite, basalt, and limestone) with contrasting chemical properties were analysed using scanning electron microscopy with an energy dispersive X-ray analyser and X-ray diffraction. It was observed that differences in microstructure and mineral phases exist at ITZ between the three different aggregates studied, The limestone in particular produced a porous ITZ as a result of chemical interaction. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1019 / 1025

页数：7

共 28 条

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[2]

[Anonymous], P INT C STRUCT CONCR

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