论建筑废弃物的现状与再生利用管理（Present situation and management of construction waste）.docVIP

论建筑废弃物的现状与再生利用管理（Present situation and management of construction waste） Present situation and management of construction waste Abstract: This paper analyzes the present situation and composition of construction waste in our country, and introduces the management of construction waste in China Principles, policies, experiences and waste disposal methods and some attempts made by our country in this regard. Key words: construction waste; waste disposal At present, the number of construction waste in China has accounted for 30%-40% of the total amount of municipal solid waste. Many regions Construction waste without any treatment, will be transported to the countryside or rural construction units, the dew stacking or fill Yao Buried way to deal with, not only occupied the valuable land resources, consumption of a large number of land requisition fees, Waste disposal fees, construction funds, and transporting and stacking process the powder and dust, flying sand left etc. The problem has caused serious environmental pollution. On the other hand, many wastes in construction waste are sorted, After being removed or crushed, most of them can be reused as recycled resources, such as waste steel bars, waste iron wires and All kinds of scrap metal and other accessories, after sorting, concentrated and re melted, can be processed into a variety of specifications Steel, bricks, sand and gravel, concrete and so on, can be used instead of sand for crushing and building mortar and plastering mortar after crushing by I, It can also be used for Subgrade cushion, building blocks and paving bricks and other building materials. 1 Definition and composition of construction waste According to the regulations for the management of urban construction waste and engineering waste (Revised Version), construction waste (i.e. building) Garbage) refers to the construction, construction units or individuals on all types of buildings, structures, such as construction, demolition, repair It produc