Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 23, Issue 7, Pages 2715-2722Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2008.12.019
Keywords
Rubber aggregates; Mortar; Mechanical properties; Microstructure; Interfacial transition zone
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Funding
- Department of ISET Sfax of TUNISIA
- Sciences University of Rabat - Morocco
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This work focuses on the feasibility of reusing and valorising rubber aggregates from shredded worn tyres in cement composites. Our purpose is to study the influence of both microstructures of matrix and of interfacial transition zone (ITZ) on mechanical properties of mortar-rubber aggregates mixtures. The same volume of rubber aggregates substituted volume fractions of sand. Volume ratios of rubber aggregates were ranged from 0% to 50%. Micro structural morphology of various samples was observed by means of scanning electron microscopy (SEM). The matrix porosity and the evolution of hydration products (CSH, CaOH2, CaCO3) were estimated for specimens that had been curing for 28 days at constant temperature and constant relative humidity. An energy dispersive X-ray analyser and X-ray diffraction were used together with SEM in order to quantify these results. Crown Copyright (c) 2008 Published by Elsevier Ltd. All rights reserved.
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