MICROCRACKING IN FIBER REINFORCED-CONCRETE

被引：87

作者：

MOBASHER, B

STANG, H

SHAH, SP

机构：

[1] TECH UNIV DENMARK,DEPT STRUCT ENGN,DK-2800 LYNGBY,DENMARK

[2] NORTHWESTERN UNIV,NSF SCI TECHNOL CTR ADV CEMENT BASED MAT,EVANSTON,IL 60208

来源：

CEMENT AND CONCRETE RESEARCH | 1990年 / 20卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0008-8846(90)90001-E

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Micromechanisms of matrix fracture in Portland cement based fiber composites are studied by means of quantitative image analysis and acoustic emission technique. An experimental investigation has been conducted with different volume concentrations of polypropylene fibers. Uniaxial tensile specimens were loaded under constant strain rate and the acoustic emission response was monitored. Thin sectioned epoxydye impregnated samples were also prepared from specimens loaded to specified strain magnitudes. Fluorescence microscopy was used to quantitatively examine the thin sections for crack density, length, and spacing. © 1990.

引用

页码：665 / 676

页数：12

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