Effects of water/binder ratio on the properties of engineered cementitious composites

被引：0
|
作者：
Yingzi Yang
Xiaojian Gao
Hongwei Deng
Pengzhan Yu
Yan Yao
机构：
[1] Harbin Institute of Technology,School of Civil Engineering
[2] China Building Materials Academy,undefined
来源：
Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2010年 / 25卷
关键词：
engineered cementitious composites (ECC); toughness; water/binder ratio; compressive strength;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effects of water/binder ratio (w/b) on the toughness behavior, compressive strength and flexural strength of engineered cementitious composites (ECC) were investigated. The w/b ratios of 0.25, 0.31, 0.33 and 0.37 were selected and the specimens were tested at the ages of 7 d and 28 d. The experimental results showed that there was a corresponding increase in first cracking strength, modulus of rupture, compressive strength and flexural strength with the decrease of w/b. Within the w/b range of 0.25–0.37, higher w/b was found to have improved effects on deflection, strain hardening index and toughness index of ECC. In the permission of meeting the requirement of compressive strength grade, selecting higher w/b in mix design will help to obtain robust ECC.
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页码：298 / 302
页数：4
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