It is reported that, with the rapid advance of the urbanization process in China, the proportion of construction waste accounts for 30% to 40% of the municipal refuse, of which only a small part of the construction waste is shipped to the specified disposal place, and most of the construction wastes are dumped at random or shipped to the landfill with illegal operation, being stored in the open air or landfill processed, which causes a great threat to people s lives and the environment.We all know that the species of construction waste is very complex. Brick, tile, stone, concrete, reinforced, etc, all of them belong to the construction waste. In foreign countries, the resource utilization of construction waste has been successfully carried out. Along with the continuous improvement of China s science and technology, many construction waste disposal equipment manufacturing enterprises began to appear on the scene, and a wide range of crushing equipment was born quietly. For example, according to the special demands of coarse crushing, medium crushing and fine crushing, Henan Hongxing Mining Machinery Co., Ltd. successfully designed and developed the jaw crusher, impact crusher, single stage mobile mobile fine mobile crusher and other crushing equipment. The construction waste can be crushed by those equipments and then through the screening equipment, the final products are divided into different species based on the different size.The experimental studies showed that after screening, putting the gravel into the high speed rotating machine, wearing its edges and corners to produces good grain shape, the use intensity of the final products will be greatly improved.
And the final products are the recycled aggregates, also means the recycled building materials. And the dust, waste water produced in the producing process also can be reused. For the regeneration building materials products produced from construction waste, the large particles called recycled coarse aggregate, which can replace the quarry stones; the small particles called recycled fine aggregate, also known as the manufactured sand, which can replace the natural sand stone. What s more, through the relevant departments detection, these renewable building materials can replace the natural sand and gravel, and even better than the natural sand. When applying to the concrete in the construction of buildings, the service life of these building will be longer and longer.