Efficiency of ternary blends containing fine glass powder in mitigating alkali-silica reaction

被引：43

作者：

Afshinnia, Kaveh ^{[1
]}

Rangaraju, Prasada Rao ^{[1
]}

机构：

[1] Clemson Univ, Glenn Dept Civil Engn, Clemson, SC 29634 USA

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2015年 / 100卷

关键词：

Glass powder; Pozzolan; Ternary blends; Compressive strength; TGA; Alkali-silica reaction; FLY-ASH; CEMENTITIOUS SYSTEMS; RECYCLED GLASS; WASTE GLASS; CONCRETE; METAKAOLIN; EXPANSION; BINARY; FUME; SLAG;

D O I：

10.1016/j.conbuildmat.2015.09.043

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this study potential synergistic role of a finely ground glass powder in binary and ternary cementitious blends with conventional SCMs such as meta-kaolin, fly ash and slag was evaluated. Strength activity index, thermo-gravimetric analysis (TGA) and mortar bar tests were conducted to study the pozzolanic behavior and ASR mitigation ability. The results from this study showed that ternary mixtures consisting of finely ground soda glass with either slag or Class C fly ash out-performed binary mixtures consisting of each of these SCMs at an equivalent dosage level. Binary mixtures consisting of meta-kaolin outperformed ternary mixtures consisting of ground glass powder with meta-kaolin at equivalent dosage level. Among all the binary and ternary mixtures that contained 30% level of SCMs, the maximum strength activity index and the most efficient ASR mitigation was obtained in ternary mixtures consisting of at least 10% glass powder. The results from TGA studies supported these findings. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：234 / 245

页数：12

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