Con la creciente preocupación por el medio ambiente, las compañias cementeras han desarollado concretos más amigable que ya podemos encontrar en el mercado. Existen tres aspectos que ayudan a mitigar el impacto: el proceso de extracción del mineral y la gestión de canteras, la reducción y compensación de emisiones de CO2 durante la manufactura del concreto junto con el aprovechamiento de materiales reciclados, y el diseño sobre el desempeño del material terminado.

La actividad cementera es responsable de entre un cinco y siete por ciento de las emisiones de CO2 a nivel mundial. Además, obtener el mineral implica remover una gran cantidad de piedra caliza, lo que afecta al entorno natural, tanto por la modificación del territorio como por la pérdida de biodiversidad. Tradicionalmente, la obtención de cemento ha representado una contaminación extendida por polvo que, al ser arrastrado por el viento, se deposita en lugares aledaños a las canteras, afectando así a las plantas y animales que ahí habitan.

Vibradores electricos de concreto
Vibradores a gasolina

El concreto  se considera el material "consentido" para el desarrollo de diversas infraestructuras; desde edificios hasta presas, pasando por carreteras, parques de diversiones y/o esculturas artísticas; siendo con un 43.1% del valor, líder del sector de la construcción, según datos del INEGI aportó el 5.9% del Producto Nacional Bruto (PNB) durante el 2012, lo que asciende a casi 2,076 millones de pesos. Sin embargo, aún con la desaceleración durante los primeros meses de 2013, se estima que la tendencia de la demanda anual de cemento aumentará un 3.1% hasta 2016, gracias a la construcción de obras relacionadas con el transporte; petróleo, petroquímica y electricidad, sistemas de comunicación; y de agua, riego y saneamiento. Así, después del agua, el cemento y el concreto son los materiales más usados por el ser humano a nivel mundial sin estar exentos de inconvenientes; tal vez el más notable es su impacto al ambiente.



Herramientas para concreto
Concreto ¿Sustentable?

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Comentarios: 21
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