Influence of basalt fibres on free and restrained plastic shrinkage

被引：89

作者：

Branston, John ^{[1
]}

Das, Sreekanta ^{[1
]}

Kenno, Sara Y. ^{[2
]}

Taylor, Craig ^{[2
]}

机构：

[1] Univ Windsor, Windsor, ON, Canada

[2] MEDA Ltd, Windsor, ON, Canada

来源：

CEMENT & CONCRETE COMPOSITES | 2016年 / 74卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Basalt fibre; Minibars; Basalt fibre reinforced concrete; Durability; Plastic shrinkage cracking; CRACKING; CONCRETE; POLYPROPYLENE; STABILITY;

D O I：

10.1016/j.cemconcomp.2016.10.004

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Early-age cracking due to plastic shrinkage is often attributed to reducing the durability of concrete structures. The objective of this paper is to evaluate the potential use of chopped basalt fibres. in preventing these cracks. Testing was undertaken to measure the magnitude of shrinkage strain that develops in unrestrained specimens, and the severity of cracking that occurs when shrinkage is restrained. Results indicate basalt fibres are effective in preventing cracks by reducing the magnitude of free shrinkage, and by restricting the growth of cracks if they do occur. The latter mechanism is more prominent when the w/c ratio is decreased. (C) 2016 Published by Elsevier Ltd.

引用

页码：182 / 190

页数：9

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