Technology make construction waste turning waste into treasure

High speed train in the newly completed Chengdu to Dujiangyan, fast receding sound barrier outside the window, the sound barrier is made of construction waste in the earthquake. It is reported, with 4 stations High-speed Rail are also using the recycled brick construction. Recently, Dujiangyan earthquake construction waste disposal demonstration project of industrialization of Sichuan Provincial Construction Department official, the provincial development and Reform Commission approval, there will be 1000000 tons per year in the future earthquake construction waste turning waste into treasure. In Dujiangyan City, Sichuan Suzhou Industrial Park, the reporter saw several ten meters tall building garbage mountain, which is produced in the Wenchuan earthquake damaged buildings after the demolition of Dujiangyan. A truck from the mountain of garbage garbage transported to a factory beside the truck from the factory, while others get out, full of various types. Seen in the workshop, through a transmission belt, construction waste is a big machine Everfount to "eat" into the stomach, after chewing after classification, spit out the powder. The Ministry of science and technology of construction waste resource of complete sets of equipment innovation fund project leader, chairman of Chengdu Debin environmental protection material, Yang Dezhi said: "at present, the project can be in various parts of construction waste crushing classification disposal and utilization. The lowest soil powder can be used for paving, end of the stone for paving roadbed, high-end crushed concrete can be used as building materials. From building materials and building materials, the real implementation of the circular economy."

From all over the country and overseas hundreds of experts and scholars, representatives of government agencies and industry recently gathered in Dujiangyan, to discuss and exchange of earthquake construction waste disposal and resource. According to the Commission director Professor Xie Yaosheng introduction to solid waste comprehensive Chinese Portland, Wenchuan earthquake caused the collapse of housing demolition and reconstruction of a total of about two of construction waste 5 tons, more than the total amount of construction waste is a mega city 20 years to produce, such as the construction garbage piled up in the open air, not only takes up a lot of land, but also may be contaminated groundwater and the soil, and such as the use of harmless disposal, at least need to spend 10000000000 yuan. The Ministry of energy saving and Comprehensive Utilization Department Senior Engineer Gao Zhenjie believes that the country in recent days, to develop and publish "the earthquake construction waste treatment technology guide", a large number of construction waste produced in Sichuan Wenchuan earthquake should be used as resources, and a number of local government in the quake hit areas have in the online open call for "disaster destruction of resources utilization and development plan", in this context, the Dujiangyan earthquake and solid waste disposal project with one, which can Protect environment, and resource recycling and energy saving and emission reduction, which is a good example.