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Advances in Materials Science and Engineering
Volume 2014, Article ID 327856, 7 pages
http://dx.doi.org/10.1155/2014/327856
Research Article

Waste Tire Particles and Gamma Radiation as Modifiers of the Mechanical Properties of Concrete

1Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón Esquina Paseo Tollocan s/n, 50180 Toluca, MEX, Mexico
2Laboratorio de Investigación y Desarrollo de Materiales Avanzados (LIDMA), Facultad de Química, Universidad Autónoma del Estado de México, km 12 de la Carretera Toluca-Atlacomulco, San Cayetano, 50200 Toluca, MEX, Mexico
3Centro Conjunto de Investigación en Química Sustentable, Universidad Autónoma del Estado de México, Universidad Nacional Autónoma de México (UAEM-UNAM), Carretera Toluca-Atlacomulco km 14.5, Unidad El Rosedal, 50200 Toluca, MEX, Mexico
4Unidad de Irradiación y Seguridad Radiológica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70-543, 04510 Mexico City, DF, Mexico

Received 15 November 2013; Accepted 27 January 2014; Published 6 March 2014

Academic Editor: Osman Gencel

Copyright © 2014 Eduardo Sadot Herrera-Sosa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In polymer reinforced concrete, the Young’s modulus of both polymers and cement matrix is responsible for the detrimental properties of the concrete, including compressive and tensile strength, as well as stiffness. A novel methodology for solving such problems is based on use of ionizing radiation, which has proven to be a good tool for improvement on physical and chemical properties of several materials including polymers, ceramics, and composites. In this work, particles of 0.85 mm and 2.80 mm obtained from waste tire were submitted at 250 kGy of gamma radiation in order to modify their physicochemical properties and then used as reinforcement in Portland cement concrete for improving mechanical properties. The results show diminution on mechanical properties in both kinds of concrete without (or with) irradiated tire particles with respect to plain concrete. Nevertheless such diminutions (from 2 to 16%) are compensated with the use of high concentration of waste tire particles (30%), which ensures that the concrete will not significantly increase the cost.