Rheology and Its Relation to Strain-Hardening Properties of Strain-Hardening Cement-Based Composites

被引：1

作者：

Fares, Galal ^{[1
,2
]}

Khan, Mohammad Iqbal ^{[3
,4
,5
]}

机构：

[1] King Saud Univ, Coll Engn, Dept Civil Engn, Riyadh, Saudi Arabia

[2] King Saud Univ, Coll Engn, Ctr Excellence Concrete Res & Testing COE CRT, Microstruct & Mat Labs, Riyadh, Saudi Arabia

[3] King Saud Univ, Dept Civil Engn, Riyadh, Saudi Arabia

[4] King Saud Univ, Ctr Excellence Concrete Res & Testing, Riyadh, Saudi Arabia

[5] Univ Sherbrooke, Dept Civil Engn, Fac Engn, Sherbrooke, PQ, Canada

来源：

ACI MATERIALS JOURNAL | 2019年 / 116卷 / 05期

关键词：

polyvinyl alcohol fiber dispersion; theological properties; strain-hardening cement-based composites; strain-hardening properties; BEHAVIOR; SLIP;

D O I：

10.14359/51716813

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

An improvement of the theology of strain-hardening cement-based composites (SHCCs) has a maximal influence on the dispersion of microfibers in the cementitious matrix. Efficient fiber dispersion leads to a better SHCC performance with the lowest fiber content. The efficiency of the crack-bridging farce of polyvinyl alcohol (PVA) microfibers for load transfer within the cementitious matrix is affected by SHCC composition, which is a function of the ingredients of the mixture and its theology. The aim of this work was to monitor and evaluate the modification taken place in the rheology of a successful SHCC mixture due to the initial and gradual incorporation of its individual ingredients. A correlation between the optimized theological parameters of successful SHCC mixture and its strain-hardening properties was established. Rheologv of SHCC is an important tool to formulate cost-effective and efficient SHCC mixtures within a defined range of rheological parameters.

引用

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页码：193 / 203

页数：11

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