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Recycled HIPS and Nanoclay in Improvement of Cement Mortar Properties

Yeganeh, J. Khademzadeh, and Sadighi, M., and Kourki, H., (2008) Recycled HIPS and Nanoclay in Improvement of Cement Mortar Properties. Malaysian Polymer Journal, 3 (2). pp. 32-38. ISSN 18237789

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Official URL: http://www.fkkksa.utm.my/mpj/images/080302_4kha.pdf

Affiliations

Amirkabir University, Iran. Dept. of Polymer Engineering
Amirkabir University, Iran. Dept. of Civil Engineering
Amirkabir University, Iran. Dept. of Civil Engineering

Abstract

The unabated growth in the use of plastics in recent years is of considerable concern because of the difficulties involved in waste disposal. Increasingly, plastics are replacing wood, glass, paper, and metal in numerous applications, especially in packaging. One of this plastics are high impact polystyrene (HIPS) whish is a common component in consumer electronic housings and automobiles. For reducing its waste and decreasing environmental problems we can use it (HIPS) in modification of cement mortar. Cement mortar was modified using recycled high impact poly styrene (HIPS) in powder form. Mixtures with polymer–cement ratios of 10, 15, and 20 wt.% were investigated for changes in compressive properties and adhesion to steel rebar. Compressive tests indicated an increase in Young’s modulus for samples with 10% and 15% HIPS. Adhesion strength to the steel rebar decreased on adding the HIPS. However, when the HIPS was treated with maleic anhydride, an increase in adhesion strength was obtained. The decrease in adhesion of the untreated HIPS-modified cement to steel was attributed to the disruption of the interface between the cement mortar and steel rebar. Addition of 5% nanoclay increased both compressive Young’s modulus and adhesion strength to the steel rebar.

Item Type:Journal
Additional Information:This project was supported by Department of Polymer and Civil Engineering in Amirkabir University. Authors would like to thank Prof. A. Sharif from Tehran University for valuable remarks on draft of this paper.
Keywords:recycled polymers, HIPS, mortar, mechanical properties, bond strength, nanoclay
Subjects:Q Science, Computer Science
T Technology, Engineering
ID Code:6196

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