UNIAXIAL TENSILE RESPONSE OF MICROFIBER REINFORCED CEMENT COMPOSITES

被引：22

作者：

BANTHIA, N ^{[1
]}

MONCEF, A ^{[1
]}

CHOKRI, K ^{[1
]}

SHENG, J ^{[1
]}

机构：

[1] UNIV LAVAL,DEPT CIVIL ENGN,ST FOY,PQ G1K 7P4,CANADA

来源：

MATERIALS AND STRUCTURES | 1995年 / 28卷 / 183期

关键词：

D O I：

10.1007/BF02473155

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Microfibre reinforced cement composites reinforced with high volume fractions of carbon, steel and polypropylene fibres were tested in uniaxial tension. Composites investigated included those with only one type of fibre (mono-fibre composites) and those with two or more types of fibres (hybrid-fibre composites) in the same mix. Considerable strengthening, toughening and stiffening of the host matrix due to microfibre reinforcement were observed. In the hybrid-fibre composites, different fibres appear to act as additive phases; i.e., they maintain their individual reinforcing capabilities. The composites were also impact tested in uniaxial tension using a newly designed instrumented impact machine. When compared with static test results, considerable sensitivity to stress rate was noted; composites were found to be stronger and tougher under impact and the improvements were more pronounced at higher fibre volume fractions. The potential of these composites for use in thin sheet products and other similar applications is recognized, and the need for continued research is stressed.

引用

页码：507 / 517

页数：11

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