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Advances in Concrete Construction   Volume 5, Number 6, December 2017, pages 563-573
Characterization of recycled polycarbonate from electronic waste and its use in hydraulic concrete: Improvement of compressive performance
Ana L. De la Colina-Martínez, Gonzalo Martínez-Barrera, Carlos E. Barrera-Díaz, Liliana I. Ávila-Córdoba and Fernando Ureña-Núñez

Abstract     [Full Text]
    Transparency, excellent toughness, thermal stability and a very good dimensional stability make Polycarbonate (PC) one of the most widely used engineering thermoplastics. Polycarbonate market include electronics, automotive, construction, optical media and packaging. One alternative for reducing the environmental pollution caused by polycarbonate from electronic waste (e-waste), is to use it in cement concretes. In this work, physical and chemical characterization of recycled polycarbonate from electronic waste was made, through the analysis by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), energy dispersive spectroscopy (EDS) and scanning electron microscope (SEM). Then cement concrete was made with Portland cement, sand, gravel, water, and this recycled polycarbonate. Specimens without polycarbonate were produced for comparison purposes. The effect of the particle sizes and concentrations of recycled polycarbonate within the concrete, on the compressive strength and density was studied. Results show that compressive strength values and equilibrium density of concrete depend on the polycarbonate particle sizes and its concentrations; particularly the highest compressive strength values were 20% higher than that for concrete without polycarbonate particles. Moreover, morphological, structural and crystallinity characteristics of recycled polycarbonate, are suitable for to be mixed into concrete.
Key Words
    polycarbonate; recycling; electronic waste; cement concrete; compressive strength
Ana L. De la Colina-Martinez: Posgrado en Ciencia de Materiales, Facultad de Quimica, Universidad Autónoma del Estado de Mexico, Paseo Colon esquina Paseo Tollocan S/N, 50180 Toluca, MEX, Mexico
Gonzalo Martinez-Barrera: Laboratorio de Investigacion y Desarrollo de Materiales Avanzados (LIDMA), Facultad de Quimica. Universidad Autonoma del Estado de Mexico, Km. 12 de la Carretera Toluca-Atlacomulco, 50200 San Cayetano, MEX, Mexico
Carlos E. Barrera-Diaz: Centro Conjunto de Investigacion en Química Sustentable UAEM-UNAM, Universidad Autonoma del Estado de Mexico Campus El Rosedal, Autopista Ixtlahuaca-Atlacomulco, Km 14.5, 50200 San Cayetano, MEX, Mexico
Liliana I. Ávila-Cordoba: Facultad de Ingenieria, Universidad Autónoma del Estado de Mexico, Avenida Universidad S/N, Cerro de Coatepec, Ciudad Universitaria, 50110 Toluca, MEX, Mexico
Fernando Urena-Nunez: Instituto Nacional de Investigaciones Nucleares, Carretera Mexico-Toluca S/N, 52750 La Marquesa Ocoyoacac, MEX, Mexico

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