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.
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July 2013
Research Article|
July 01 2013
Grafting of continuous polypropylene fibres by methacrylic acid monomers to improve their bonding to concrete matrix
Majid Mazhar;
Majid Mazhar
PhD Student, Department of Chemistry, Amirkabir University of Technology (Polytechnic), Tehran, Iran
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Majid Abdouss;
Majid Abdouss
Academic member, Associate Professor, Department of Chemistry, Amirkabir University of Technology (Polytechnic), Tehran, Iran
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Zahra Shariatinia;
Zahra Shariatinia
Academic member, Assistant Professor, Department of Chemistry, Amirkabir University of Technology (Polytechnic), Tehran, Iran
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Mojdeh Zargaran
Mojdeh Zargaran
Researcher, Assistant Professor, Building and Housing Research Center (BHRC), Tehran, Iran
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Publisher: Emerald Publishing
Revision Received:
January 02 2013
Revision Requested:
March 04 2013
Accepted:
March 11 2013
Online ISSN: 1751-763X
Print ISSN: 0024-9831
ICE Publishing: All rights reserved
2013
Magazine of Concrete Research (2013) 65 (13): 802–808.
Article history
Revision Received:
January 02 2013
Revision Requested:
March 04 2013
Accepted:
March 11 2013
Citation
Mazhar M, Abdouss M, Shariatinia Z, Zargaran M (2013), "Grafting of continuous polypropylene fibres by methacrylic acid monomers to improve their bonding to concrete matrix". Magazine of Concrete Research, Vol. 65 No. 13 pp. 802–808, doi: https://doi.org/10.1680/macr.13.00010
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