Combined effect of polypropylene fiber and silica fume on workability and carbonation resistance of concrete composite containing fly ash

Author:

Zhang Peng1,Li Qing-Fu1

Affiliation:

1. School of Water Conservancy and Environment Engineering, Zhengzhou University, People’s Republic of China

Abstract

A parametric experimental study has been conducted to investigate the combined effect of polypropylene fiber and silica fume on the workability and carbonation resistance of concrete composite containing fly ash. Five different fiber volume fractions, four contents of fly ash and four silica fume contents were used. The results indicate that the workability of the concrete composite becomes better and better by increasing the fly ash content. The addition of fly ash has lowered the carbonation resistance of concrete composite, and the carbonation resistance is decreasing gradually with the increase of fly ash content. Besides, the addition of silica fume can evidently improve the carbonation resistance of concrete composites containing fly ash, and the carbonation resistance is becoming better and better as the silica fume content is increasing gradually. In addition, polypropylene fiber can greatly improve the carbonation resistance of concrete composites containing fly ash and silica fume, and there is a tendency of increase in the carbonation resistance with the increase of fiber volume fraction as the fiber volume fraction is below 0.12%. However, the addition of silica fume and polypropylene fiber has a little adverse effect on the workability of the concrete composites.

Publisher

SAGE Publications

Subject

Mechanical Engineering,General Materials Science

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3