|
 Home > Recycled aggregates |
Recycled aggregates2005-02-28 Professionals in producing aggregates from natural origin or from recycled materials are in competition with other professions, especially relating to land use. In order to optimise the resources available, it is necessary to adopt a global approach regarding the production and supply of materials used in civil engineering works. This issue should be set within the logic of sustainable development. Aggregates are in terms of volume the most important constituent in civil engineering structures. In OECD countries, aggregates consumption is comprised between 5 and 8 tons per year per inhabitant. In general, aggregates are produced from materials resulting from the mechanical processing of natural rock. Aggregates are also produced from recycling materials and industrial waste from various origins. Therefore, aggregate consumption is at the heart of a context with specific implications as regards the economy, industry, the community, agriculture, tourism and culture. For this reason, the production and consumption of aggregates are inevitably and closely linked to the sustainable development issue. Recycled material choices: Slag from power stations/steel works Spoil from china clay workings Concrete Cullet from the glass industry Colliery Spoil Slate Waste Steel and Blast Furnace Slags |