subject: The Comprehensive Utilization Of Construction Waste [print this page] Annual soil brick making to destroy thousands of acres of land, sand mining quarrying to destroy large areas of pastures and the mountains. The result has been a large number of construction waste for the production of human construction endangering its own survival and human demand for building materials, destruction of their own living environment. Many resources on Earth are non-renewable, as the construction materials of the largest cement and concrete materials, the raw material also exists the problem of shortage. Construction waste generated by the landfill, but also take up a lot of land.
Backfill the use of construction waste in Shenzhen City, in addition to the spontaneous construction projects and to fill overseas are simple landfill disposal. The city's three existing large construction waste landfill: Tong Long Hill Construction landfill covers an area of 220,000 m2 (330 acres); the Longgang construction landfill, an area of 110,000 m2 (165 acres); Baoan construction waste landfill, an area of 120,000 m2 (180 acres).Longgang and Bao'an District, the landfill has been filled, most of the other construction waste by the streets on their own disposal. In four short years, the city and outside the landfill has reached saturation, and some have been exceeded, the muck to do many times emergency. Improve urban construction waste utilization, change the mode of traditional building materials - building - construction waste ", the formation of a recycling mode of construction materials - building - construction waste - renewable raw materials" in the building process so that raw materials are maximize the rational, efficient, sustainable use, and reduce its impact on the natural environment to the extent possible, truly a "reduction" and "resources", "reuse".
Recycling of resources is also possible to create a rich material profit industry. The data show that the resource recycling industry provides 1.1 million jobs, with annual sales of up to $ 236 billion to pay for staff salaries totaling $ 37 billion, with U.S. auto industry quite. EU countries each year of construction waste recycling rate of over 90%, South Korea, Japan has reached more than 97%. In recent years, under the leadership of the Municipal Government, Shenzhen Municipal Housing and Urban Council, the Urban Management Bureau, Public Works Department and the Nanshan District Government, innovative ideas, vigorously develop the field of city building green low-carbon economy, bidding the introduction of the Warwick building materials company in Zhengzhou ItalyCrusher of Mining Machinery Co., Ltd. R & D and production of construction waste in situ conversion, comprehensive utilization of construction waste, broken by equipment on the site of construction waste disposal, construction waste made of recycled aggregate, Holland brick, solid brick, hollow brick, color, water-permeable bricks , square brick, grass brick, curbs and other 15 categories of green and renewable building materials, the construction waste comprehensive utilization of resources projects eat the debris-rubble spit is a new environmentally friendly bricks. Day 800 tons of construction waste regeneration. Tong Long Hill Construction waste utilization plant is not only an annual output of unburned 1.5 million cubic meters of new building wall materials digestion of about one million tons of construction waste, saving more than 600 acres of arable land due to the burning red-brick destruction, saving construction waste landfill piled up more than 100 acres of land, saving 60,000 tons of coal, 900 tons of sulfur dioxide to reduce emissions to the atmosphere each year, but also for the government an annual saving of a large number of construction waste disposal charges.
