Recovery and Modification of Waste Tire Particles and Their Use as Reinforcements of Concrete
Por:
Herrera-Sosa E.S., Martínez-Barrera G., Barrera-Díaz C., Cruz-Zaragoza E., UrenaNunez, F
Publicada:
1 ene 2015
Categoría:
Polymers and Plastics
Resumen:
Environmental pollution caused by solid wastes is increasing in the last
decades; one of these is referred to automotive tires, which are
recycled by different methods, including mechanical grinding. One of the
most recurrent applications is to use recycled particles as fillers in
building materials, as hydraulic concrete. Nevertheless, detrimental
values on the mechanical properties are obtained when they are added.
For solving these problems, in this work, a novel proposal is to modify
the physicochemical properties of the waste automotive tire particles,
previously obtained by grinding process, by using gamma irradiation in
order to use them as reinforcements of hydraulic concrete. The results
show that improvements on the mechanical properties depend of gamma
irradiation as well as concentration and size of waste tire particles.
Moreover, SEM images are related to mechanical properties; for instance,
rough surface of the tire particles changes when applying irradiation;
more smooth surfaces are created, due to the cross-linking of polymer
chains. Nevertheless, for higher doses, cracks are observed which are
produced by scission of the polymer chains.
Filiaciones:
Herrera-Sosa E.S.:
Facultad de Química, Universidad Autónoma Del Estado de México, Paseo Colón Esquina Paseo Tollocan S/N, Toluca, 50180, Mexico
Martínez-Barrera G.:
Laboratorio 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, Mexico
Barrera-Díaz C.:
UAEM UNAM, Ctr Conjunto Invest Quim Sustentable, Toluca 50200, Mex, Mexico
Cruz-Zaragoza E.:
Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Unidad Irradiac & Seguridad Radiol, Mexico City 04510, DF, Mexico
Gold
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