Grafting of continuous polypropylene fibres by methacrylic acid monomers to improve their bonding to concrete matrix-Reference-Cited by-同舟云学术

Grafting of continuous polypropylene fibres by methacrylic acid monomers to improve their bonding to concrete matrix

Published:2013-07 Issue:13 Volume:65 Page:802-808
ISSN:0024-9831
Container-title:Magazine of Concrete Research
language:en
Short-container-title:Magazine of Concrete Research

Author:

Mazhar Majid¹,Abdouss Majid²,Shariatinia Zahra³,Zargaran Mojdeh⁴

Affiliation:

1. PhD Student, Department of Chemistry, Amirkabir University of Technology (Polytechnic), Tehran, Iran

2. Academic member, Associate Professor, Department of Chemistry, Amirkabir University of Technology (Polytechnic), Tehran, Iran

3. Academic member, Assistant Professor, Department of Chemistry, Amirkabir University of Technology (Polytechnic), Tehran, Iran

4. Researcher, Assistant Professor, Building and Housing Research Center (BHRC), Tehran, Iran

Abstract

In this paper, methacrylic acid monomers grafted to continuous polypropylene fibres to make them hydrophile, while grafting experiments are designed based on Taguchi method in which temperature, monomer concentration, cross-linker concentration and time of reaction are selected as variable factors at four levels and several polypropylene fibres with various grafting degrees are obtained. Next, pull-out behaviour of modified fibres embedded to concrete is investigated and compared to raw fibres. In addition, influence of grafting on pull-out behaviour of fibres is addressed. Pull-out tests and scanning electron microscopy images verified the bonding improvement of the proposed fibres to concrete appropriately. Finally, optimum grafting degree to achieve the best bonding between the fibres and concrete with highest tolerated tensile load is determined.

Publisher

Thomas Telford Ltd.

Subject

General Materials Science,Building and Construction,Civil and Structural Engineering

Link

https://www.icevirtuallibrary.com/doi/pdf/10.1680/macr.13.00010

Reference27 articles.

1. Optimization of the type and amount of polypropylene fibres for preventing the spalling of lightweight concrete subjected to hydrocarbon fire

2. Polypropylene fibers grafted with poly(acrylic acid)

3. Cementitious-matrix composites from SiCl4-plasma-activated polypropylene fibres

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