The renewable resources industry has become a worldwide sunrise industry. In the next 30 years, the resources provided by the renewable resources industry will increase from 30% of the total raw materials currently to 80%. The output value will exceed 3 trillion U.S. dollars and 350 million jobs will be provided. There are no waste recycling economy, recycling society and recycling world.
Construction waste is not waste and it is a renewable resource. Construction wastes mainly refer to the wastes that are removed during the renovation of the old city and the construction of the buildings. The main components of construction waste are: soil, muck, waste steel, scrap wire and various scrap steel fittings, metal pipeline waste, waste bamboo, sawdust, shavings, packing boxes of various decorative materials, packaging bags, scattered mortar and Concrete, broken bricks and broken concrete blocks, yellow sand, stones and block stones scattered during the transportation. Different construction forms of construction sites have slightly different proportions of garbage; different levels of construction management, and different amounts of garbage.
Most of the waste in construction waste can be reused as a renewable resource after it has been mined, rejected, or crushed. For example, waste steel bars, scrap wire, waste wires, and various scrap metal and other metals are sorted, concentrated, and returned to the furnace. , can be processed into a variety of specifications of the steel; waste bamboo wood can be used to manufacture artificial wood; brick, stone, concrete and other waste after crushing, sand can be used for masonry mortar, plaster mortar, concrete Mats, etc., can also be used to make building materials such as bricks, paving tiles, and flower tiles; bricks and tiles can be reused after being cleaned; waste bricks, tiles and concrete can be used as recycled aggregates after being broken and sieved. Configure low-grade recycled aggregate.
Therefore, we must change the traditional concept of construction waste and throw it away from the traditional practice, to recognize construction waste as an important resource to use. This will not only change the urban environment, but also change gold in the garbage dump. The
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