Effect of polypropylene fiber on fracture properties of high-performance concrete composites

A parametric experimental study has been conducted to investigate the effect of polypropylene fiber on the workability and fracture properties of high-performance concrete (HPC) composites containing fly ash and silica fume, with the five fiber volume fractions (0.04%, 0.06%, 0.08%, 0.1%, and 0.12%)...

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Main Authors: Zhang Peng, Li Qing-fu
Format: Article
Language:English
Published: De Gruyter 2012-12-01
Series:Science and Engineering of Composite Materials
Subjects:
Online Access:https://doi.org/10.1515/secm-2012-0049
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spelling doaj-ceb22a4ca1d549ac939cbee436f847732021-09-05T14:00:27ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592012-12-0119440741410.1515/secm-2012-0049Effect of polypropylene fiber on fracture properties of high-performance concrete compositesZhang Peng0Li Qing-fu1Department of Water Conservancy and Environment Engineering, Zhengzhou University, Zhengzhou 450001, P. R. ChinaDepartment of Water Conservancy and Environment Engineering, Zhengzhou University, Zhengzhou 450001, P. R. ChinaA parametric experimental study has been conducted to investigate the effect of polypropylene fiber on the workability and fracture properties of high-performance concrete (HPC) composites containing fly ash and silica fume, with the five fiber volume fractions (0.04%, 0.06%, 0.08%, 0.1%, and 0.12%) used. The results indicate that the addition of polypropylene fiber decreases the workability of the HPC composites containing fly ash and silica fume. With the increase in the fiber volume fraction, both of the slump and the slump flow decrease gradually. Furthermore, the addition of polypropylene fiber has greatly improved the fracture parameters of concrete composite containing 15% fly ash and 6% silica fume, such as fracture toughness, fracture energy, effective crack length, maximum midspan deflection, the critical crack opening displacement, and the maximum crack opening displacement of the three-point bending beam specimens. When the fiber volume fraction increases from 0% to 0.12%, the fracture parameters increase gradually. The variation rules of the fracture parameters indicate that the capability of the polypropylene fiber to resist the crack propagation of the concrete composite containing 15% fly ash and 6% silica fume is becoming stronger and stronger with the increase in fiber volume fraction with the fiber volume fraction not above 0.12%.https://doi.org/10.1515/secm-2012-0049fly ashfracture propertyhigh-performance concretepolypropylene fibersilica fume
collection DOAJ
language English
format Article
sources DOAJ
author Zhang Peng
Li Qing-fu
spellingShingle Zhang Peng
Li Qing-fu
Effect of polypropylene fiber on fracture properties of high-performance concrete composites
Science and Engineering of Composite Materials
fly ash
fracture property
high-performance concrete
polypropylene fiber
silica fume
author_facet Zhang Peng
Li Qing-fu
author_sort Zhang Peng
title Effect of polypropylene fiber on fracture properties of high-performance concrete composites
title_short Effect of polypropylene fiber on fracture properties of high-performance concrete composites
title_full Effect of polypropylene fiber on fracture properties of high-performance concrete composites
title_fullStr Effect of polypropylene fiber on fracture properties of high-performance concrete composites
title_full_unstemmed Effect of polypropylene fiber on fracture properties of high-performance concrete composites
title_sort effect of polypropylene fiber on fracture properties of high-performance concrete composites
publisher De Gruyter
series Science and Engineering of Composite Materials
issn 0792-1233
2191-0359
publishDate 2012-12-01
description A parametric experimental study has been conducted to investigate the effect of polypropylene fiber on the workability and fracture properties of high-performance concrete (HPC) composites containing fly ash and silica fume, with the five fiber volume fractions (0.04%, 0.06%, 0.08%, 0.1%, and 0.12%) used. The results indicate that the addition of polypropylene fiber decreases the workability of the HPC composites containing fly ash and silica fume. With the increase in the fiber volume fraction, both of the slump and the slump flow decrease gradually. Furthermore, the addition of polypropylene fiber has greatly improved the fracture parameters of concrete composite containing 15% fly ash and 6% silica fume, such as fracture toughness, fracture energy, effective crack length, maximum midspan deflection, the critical crack opening displacement, and the maximum crack opening displacement of the three-point bending beam specimens. When the fiber volume fraction increases from 0% to 0.12%, the fracture parameters increase gradually. The variation rules of the fracture parameters indicate that the capability of the polypropylene fiber to resist the crack propagation of the concrete composite containing 15% fly ash and 6% silica fume is becoming stronger and stronger with the increase in fiber volume fraction with the fiber volume fraction not above 0.12%.
topic fly ash
fracture property
high-performance concrete
polypropylene fiber
silica fume
url https://doi.org/10.1515/secm-2012-0049
work_keys_str_mv AT zhangpeng effectofpolypropylenefiberonfracturepropertiesofhighperformanceconcretecomposites
AT liqingfu effectofpolypropylenefiberonfracturepropertiesofhighperformanceconcretecomposites
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