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Extensive use of construction waste can be separated into a single component can also be mixed use.
Roof demolition and renovation of roads will have a lot of asphalt, concrete mixture, after separation After separation, the bituminous material can be recycled. Asphalt Pavement After crushing and screening, and recycling agent, new aggregate, new asphalt material, an appropriate proportion of re-mixing to form with a certain road performance of recycled asphalt concrete for paving surface or grass-roots. Also recyclable and roofing asphalt materials used in the cold mixing hot mix of asphalt pavement construction, greatly reduce the pure asphalt. Asphalt roofing materials containing a high level of mineral fillers, they can replace the cold mix, part of the aggregate in hot mix asphalt, asphalt roofing materials containing cellulose structure, help to improve the performance of hot mix asphalt.
Concrete block accounted for about 30% of the total construction waste is an important part of the value component is recycled concrete block crushed, can be used for the production of recycled concrete, recycled cement, or as roadbed material, or broken bricks and lime used to ram expanding pile.
(1) the production of recycled aggregate concrete
Recycled concrete technology is a concrete block broken, cleaning, grading, mixing formed by a certain percentage of recycled aggregate (WCA), part or all configuration instead of natural aggregate concrete technology. The use of recycled aggregate concrete of some or all of the aggregate configuration, known as recycled concrete.
(2) the production of renewable cement
Waste concrete for production of cement raw materials, you can save a lot of liZenithne, natural stone and iron resources, but also less burning of coal, but requires a lot of human sorting of waste concrete to remove the debris.