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    Vota por este artículo Este artículo ha sido leido 1.045 veces

    España: Plástico reciclado para hacer más duraderas las carreteras

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    El reciclado necesita inventarse una vida nueva. A día de hoy, la cantidad de este material que se recoge en España, unas 300.000 toneladas en 2009, cubren casi el 100% de los usos finales a los que estaba dedicado hasta ahora, como la fabricación de tuberías o de bolsas de basura, tal y como apuntan desde la asociación Cicloplast, que representa a la industria plástica y está encargada de fomentar el reciclaje de este producto. Por eso, para ampliar sus y no acabar en el vertedero, la asociación se ha aliado con para investigar las posibilidades de uso de este producto en el betún asfáltico, para las carreteras.

    “A día de hoy, los mercados finales para el plástico reciclado son la realización de productos de calidad media-baja y están bastante saturados y afectados por la crisis. Por ejemplo, con la caída de la construcción, se fabrican menos tuberías. Además, el 95% de las bolsas de basura que se consumen en España provienen de estos reciclajes”, explica Teresa Martínez, directora general de Cicloplast. La responsable enfatiza que “es necesario reactivar los usos tradicionales pero también buscar nuevas aplicaciones”.

    Una de estas nuevas salidas se la va a proporcionar Ferrovial. La constructora, a través de su filial Ditecpesa, ha firmado “un acuerdo de colaboración para la puesta en marcha de un proyecto de investigación que tiene como objetivo la reutilización de los plásticos al final de su vida útil en mezclas asfálticas para su aplicación en las carreteras”, según afirmaron desde ambas entidades. El acuerdo, que lleva en marcha desde septiembre de este año, se hizo público aprovechando la celebración, la semana pasada, del Congreso Nacional de Medio Ambiente (Conama).

    Ditecpesa se dedica al “desarrollo, fabricación y comercialización de productos asfálticos”. Factura alrededor de 50 millones de euros al año y dedica entre un 1% y un 1,5% de sus ventas a este tipo de proyectos de investigación. Julio Pedrosa, consejero de la filial de Ferrovial, estima que la aplicación de estos plásticos reciclados al betún asfáltico “mejorará su durabilidad, porque se oxidará menos, y su resistencia, porque permitirá que las carreteras se deformen mucho menos. Proporcionará a estas infraestructuras interesantes innovaciones de calidad”. Según los cálculos de Pedrosa, si la iniciativa llega a escala comercial, se utilizará un 5% de plástico reciclado en la fabricación de las 100.000 toneladas de betún anuales de la empresa.

    Ditecpesa ya ha hecho una primera experiencia en este sentido con un tramo de autovía en Almería. Utilizó 2.000 toneladas de plástico reciclado de invernaderos para el asfalto de esta carretera, que es un excelente banco de pruebas “porque sufre temperaturas extremas durante el año”.

    Las entidades afirman que, para que estas innovaciones prosperen, es necesario contar con el impulso de la Administración y las comunidades autónomas. FUENTE: cincodias.com

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