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Category Economy cars
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Created 2018-06-26
Owner xuanxuan251
Title Analysis of the experience of Germany and Japan in the disposal of construction waste
Description Up to now, there have been more than a dozen provinces in China that have issued policies and regulations on the disposal and utilization of construction waste. However, the current status of the use of construction waste is not ideal. The phenomenon of "garbage siege" that frequently appears in various places still touches the public's environmental protection nerves. The increasing amount of garbage has become a topic that people cannot avoid. In terms of construction waste crusher and reuse, Western Europe, Asia, Japan and South Korea, and Singapore have all been at the forefront of the century. What experience do these countries have that we can learn from? Germany's transformation of construction waste utilization thinking in the reconstruction of World War II ruins In the Second World War, Germany's major cities such as Berlin were bombed by the Allied forces massively, resulting in a large amount of construction waste, and the damage rate of buildings exceeded 80%. The reconstruction process requires a large amount of construction materials, but Germany is in a hurry to meet social needs. In this case, in addition to construction waste that cannot be used, the vast majority of construction waste is recycled and reused, greatly accelerating the post-war period. Urban construction also solves the problem of waste disposal. This experience also allowed the German government to develop a knowledge of construction waste. Once it changes its thinking, it is a valuable resource. For this reason, German law stipulates that every intermediary in the chain of building materials and construction waste disposal must contribute to the reduction of construction waste. Material manufacturers must make their products more environmentally friendly and conducive to recycling. Building contractors must establish a recycling plan for the waste that may be generated during the construction process. Recycling projects must also develop a corresponding garbage collection plan. At the same time, the fierce competition in the market has also forced companies to reduce the price of recycling construction waste. They can only profit from the decomposition, recycling and sales of construction waste. Through the formulation of policies and government supervision, Germany's construction waste crusher rate reached about 90%, which is one of the best countries in the world. Japan Refining Recycling and Disposal of Construction Waste on Legal Construction Reducing waste generation on the construction site and reusing it as much as possible is the main principle for the disposal of construction waste in Japan. There are as many as 20 kinds of classifications of building by-products in Japan, and different wastes have different legal norms. The contractor and construction party of a construction project are obliged to reduce the production of construction by-products during the construction process. Building material suppliers and building designers are obliged to produce and use renewable building materials. Construction by-products that can be reused should be reused as much as possible; construction by-products that cannot be reused should be recycled as much as possible; and by-products that cannot be recycled should be heat-recovered by combustion as much as possible. In addition, Japan has strict regulations on the classification and disposal of construction waste. The project builder shall submit to the construction company the quantity of construction waste that may be generated and the disposal plan, and save it for five years. If it exceeds 1,000 tons, it must report to local government departments. At present, Japan's construction waste resources have reached 96%.
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