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| Lafarge wins environmental award for Calgary International Airport work Parking Lot Project incorporated sustainable practices while diverting waste away from landfill - 42,470 tonnes of material diverted from landfill and recycled. The Purple Lot, a Lafarge parking lot project at Calgary International Airport (YYC) which incorporated the use of an amended asphalt mix containing reclaimed asphalt pavement and Asphalt Shingle Modifier, was recently recognized by the Canadian Construction Association for its sustainable features. The project met specifications, reduced waste and permitted mixing to occur at lower temperatures, reducing emissions at the asphalt plant. In addition, Lafarge used recycled concrete in the parking lot sub-base in lieu of virgin material. The recycled concrete was processed to have the same physical properties as the gravel, resulting in more than 40, 000 tonnes of concrete being diverted from landfills. An additional benefit occurred in reduced haul distance resulting in a reduction of over 1, 000 tonnes of CO2 emissions. As well, recycled rubber wheel stops were used in lieu of concrete wheel stops. The project required 650 wheel stops, each of which prevents 2.3 tires from reaching the landfill. For this project, approximately 1,500 tires were effectively diverted from landfill. The end results were: more than 42,470 tonnes of material diverted from landfill and recycled for this project and a reduction of 1392.7 tonnes of CO2 emissions. write your comments about the article :: © 2012 Construction News :: home page |