Improving steel fiber reinforced concrete pull-out strength with nanoscale iron oxide coating

被引：20

作者：

He, Qinyue ^{[1
]}

Liu, Chuangwei ^{[1
]}

Yu, Xun ^{[1
]}

机构：

[1] Univ N Texas, Dept Mech Energy Engn, Denton, TX 76201 USA

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2015年 / 79卷

关键词：

FRC; Iron oxide; Electrodeposition; Pull-out test; GROWTH;

D O I：

10.1016/j.conbuildmat.2015.01.055

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Fiber-reinforced concrete (FRC) has been extensively used all over the world for over 40 years. Steel fiber, being the first and most commonly employed reinforcement fiber, is always favored as the uniformly dispersed reinforcement for concrete due to its improvement towards mechanical strength, failure mode and bonding toughness. This article depicts a nanoscale reinforcement of iron oxide coatings on steel fibers prepared by electrodeposition method. The results indicate that pristine Fe2O3 particles, Fe2O3 nanorods and nanosheets were synthesized under different depositing conditions. The nanorod and nanosheet coated.steel fibers were embedded in cement mortar for fiber pull-out tests. Corresponding pull-out tests revealed that iron oxide coating showed a strength enhancement up to 82% compared to the conventional fiber reinforced cement mortar samples. (c) 2015 Elsevier Ltd. All rights reserved.

引用

页码：311 / 317

页数：7

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