As the urbanization process continues to accelerate, the amount of construction waste generated and discharged in cities is also growing rapidly. While enjoying urban civilization, people are also suffering from the troubles caused by urban garbage. Among them, construction waste accounts for a considerable proportion, accounting for 30% to 40% of the total waste. Therefore, how to deal with and use more and more Construction waste has become an important issue faced by government departments at all levels and construction waste disposal units.

Many of the waste in construction waste can be reused as renewable resources after being sorted, rejected or crushed. The main ones are:

(1) The use of waste construction concrete and waste masonry to produce coarse and fine aggregates, which can be used to produce concrete, mortar or other building materials such as blocks, wall panels and floor tiles. After adding the solidified material to the coarse and fine aggregates, it can also be used for the road pavement base.
(2) The use of waste bricks to produce aggregates can be used to produce recycled bricks, blocks, wallboards, floor tiles and other building materials.
(3) The muck can be used for road construction, pile foundation packing, foundation foundation, etc.
(4) For waste wood construction waste, the wood that has not been obviously damaged can be directly reused for reconstruction, and the damage is serious.
The wooden member can be used as a raw material for wood-recycled sheets or papermaking.
(5) Abandoned asphalt mixture can be directly used for reclaiming asphalt concrete in an appropriate proportion.
(6) Abandoned road concrete can be processed into recycled aggregate for the preparation of recycled concrete.
(7) Scrap steel, scrap steel and other scrap metal materials can be directly reused or recycled.
(8) Construction waste such as waste glass, waste plastics, and waste ceramics shall be used separately depending on the situation.
(9) The used bricks are burnt clay materials. When crushed and ground into powder materials, they have pozzolanic activity and can be used as concrete admixtures instead of fly ash, slag powder and stone powder.