Mechanical and microstructural properties of self-compacting concrete blended with metakaolin, ground granulated blast-furnace slag and fly ash

被引：172

作者：

Dadsetan, Sina ^{[1
,2
]}

Bai, Jiping ^{[1
]}

机构：

[1] Univ South Wales, Fac Comp Engn & Sci, Treforest Campus, Pontypridd CF37 1DL, M Glam, Wales

[2] Univ Ottawa, Civil Engn, Ottawa, ON K1N 6N5, Canada

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 146卷

关键词：

Self-compacting concrete; Mixture design method; Metakaolin; Ground granulated blast-furnace slag; Fly ash; Compressive strength; Modulus of elasticity; Scanning electron microscope (SEM); Energy dispersive X-ray spectroscopy (EDS); INCORPORATING PFA; STRENGTH; PERFORMANCE; MORTAR; FRESH; RATIO; WATER;

D O I：

10.1016/j.conbuildmat.2017.04.158

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The aim of this study is to investigate the mechanical and microstructural properties of self-compacting concrete (SCC) mixtures containing three supplementary cementitious materials (SCMs), namely meta kaolin, ground granulated blast-furnace slag and fly ash. For the mixtures, cement was replaced by SCMs at different levels. The mechanical properties were evaluated against a control mixture (without SCM). The microstructural properties were examined using SEM and EDS on mixtures with high volume of SCMs. The utilisation of SCMs enhanced compressive strengths. Metakaolin gave the most enhancing effect as a replacement material to cement on mechanical and microstructural properties of SCC at all ages. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：658 / 667

页数：10

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