Talk about recycling concrete from the recycling economy

Currently, the number of China's construction waste accounts for 30% to 40% of the total amount of municipal waste. Recovery of construction waste in Hong Kong, China 80%, China Taiwan region of 50% of recycling concrete rate is lower, the vast majority of construction waste without any treatment, construction units will be shipped to the suburbs or rural areas, the use of open-air stacked or landfill processing, consume large amounts of land acquisition costs, construction funds trash Yisa and dust removal and transportation and stacking process, gray sand flying caused serious environmental pollution. The rapid development of the economy, will inevitably bring about the rapid generation of construction waste.

"Circular economy", proposed in the 1960s by the U.S. economist, in the system of the people, natural resources and science and technology, in the investment of resources, production, consumption and its waste products in linear growth in the economy of the traditional dependence on resource consumption, into economic development rely on eco-resources cycle. The circular economy traditional resources → → waste emissions "open loop economic system into a the economic resources → → Waste → recycling" closed loop system, to change the traditional way of thinking, ways of production and life way. Rational use of resources and environmental protection, and gradually achieve "zero emissions" or "micro-emissions. It requires the whole community to enhance cherish resources, recycling of resources, turning waste into treasure, awareness of environmental protection, to promote resource consumption reduction, repeated product use and waste of resources.

Road works construction waste disposal requirements is also guided by the theory of circular economy based on recycling economy theory, resources to form a closed loop thinking. For example, in the Ender outside the Nanjing municipal waste comprehensive utilization development company works on site can see the regeneration processing waste - concrete as a material building into the road. Technical personnel, they first shipped waste concrete crushing plant, different size concrete mixed in proportion, plus lime, coal and specialty additives, generate two gray stones "with this material "grass-roots", as a road to fully meet the requirements of the road carrying capacity. In recent years, China's rapid development of urban construction, and demolition of the old Jianxin, bring a large number of construction waste. It is understood that not only the old building, the demolition and renovation of roads and bridges construction waste, housing in the new process, its basement foundation pit support and construction of pile foundation engineering, also will produce a lot of waste concrete and muck construction waste.

Based around the specific circumstances, according to local conditions through scientific management and effective control measures to reduction, construction waste generated by scientific means, it has the function of renewable resources, the only effective way to solve the garbage occupy large tracts of arable land and pollution the problems of the environment, but also create a certain social and economic benefits; China's recycling concrete work to embark on the path of development of the economic cycle.

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tions-ʱʵ-tions Ugong-ʱʵ-Ugong ChinaSEO-ʱʵ-ChinaSEO 58tc-ʱʵ-58tc win7-ʱʵ-win7 000032-ʱʵ-000032 Aws-ʱʵ-Aws Ganb8-ʱʵ-Ganb8 wenxin-ʱʵ-wenxin Hong-ʱʵ-Hong Gen-ʱʵ-Gen liant-ʱʵ-liant blue-ʱʵ-blue part-ʱʵ-part 801137-ʱʵ-801137 idian-ʱʵ-idian maine-ʱʵ-maine Get-ʱʵ-Get hldtc-ʱʵ-hldtc vntiu-ʱʵ-vntiu engxv-ʱʵ-engxv 0x3-ʱʵ-0x3 H2685-ʱʵ-H2685 972-ʱʵ-972 -ʱʵ- 6f6-ʱʵ-6f6 IZ5-ʱʵ-IZ5