In recent years, for construction waste, on-site decomposition and landfill treatment and strengthening the utilization rate of recycling treatment will be the key treatment methods, and the recycling of construction waste treatment will enter a period of rapid development on a large scale. With the rapid development of China’s urban economy, the transition from demolition to construction of existing buildings has become an inevitable stage of urban construction. In this process, construction waste has increased sharply, and construction waste treatment technology has become more and more mature. If construction waste from house demolition is crushed, sorted, and screened by mobile or fixed crushing machinery, it will pass through crushers and sand production lines. Brick making machine, etc. to make recycled building materials after processing.
After sorting the recyclable steel bar and wood, the construction waste is crushed into aggregates. After screening and removing impurities, building materials with a certain particle size are formed. According to the process requirements, cement is added to the raw materials. The auxiliary materials such as fly ash and fly ash are mixed with water in proportion to produce different building materials and road construction products. These products can completely replace ordinary sand and gravel materials for road base. The recycled aggregate produced from waste bricks and tiles is passed through a brick making machine to produce recycled bricks, blocks, wallboards, floor tiles and other building materials. These building materials are very environmentally friendly. They include three types of ecological permeable bricks for ground materials, ecological permeable bricks, pouring permeable bricks, and permeable road bricks. They have been widely used in sidewalks, slow lanes, open spaces, gardens, slope protection, foundation protection, highways and overpasses, etc. Waste wood-based construction waste and wood that have not been significantly damaged can be directly reused for reconstruction of buildings. Seriously damaged wooden components can be used as raw materials for wood recycled panels in the paper industry, etc., scrap steel, scrap steel bars and other scrap metals. The material can be reused directly or returned to the furnace for processing.
The utilization of solid waste in building materials has become an important development direction of the current building materials industry. With the rapid development of China’s urban economy, the transition from demolition to construction of existing buildings has become an inevitable stage of urban construction. In this process, construction waste has increased sharply, and construction waste treatment technology has become more and more mature. If construction waste from house demolition is crushed, sorted, and screened by mobile or fixed crushing machinery, it will pass through crushers and sand production lines. It is a general trend to make recycled building materials after processing by brick and brick machines.