Permeable brick quotation : With the acceleration of urban modernization and rural urbanization, the output value of construction waste is increasing. Most of these construction wastes were transported outside the city or villages without treatment, and were piled up or landfilled in the open air, or even dumped directly into rivers, lakes, and ponds. So much construction costs such as land requisition and waste removal costs are not to be mentioned. There are also many social problems such as ecological damage, land occupation, water pollution, and city appearance, especially the dust and dust during the removal and accumulation process. Problems such as Sha Feiyang have caused severe environmental pollution. Therefore, how to dispose of construction waste scientifically has become a serious subject that the government's social and public affairs management is eager to crack.
In practice, these construction wastes are not wastes in the real sense. They are a useful resource that can completely become recycled environmental protection bricks. When they "turn waste into treasure", they can bring significant economic and economic benefits to society. Environmental benefits. Some experts estimate that by 2020, at least 500 billion tons of new construction waste will occur in China, and 50% of it will be converted into recycled green building materials such as standard bricks and blocks, which will be worth 600 billion yuan. From this point of view, the scientific treatment of construction waste and its "turning waste into treasure" is an extremely serious subject. It is of great significance to save resources, protect the environment and sustainable development of the construction industry.
Because of this, many cities in China have issued relevant guidelines and regulations for the resourceful and harmless treatment of construction waste, and some cities have also presented professional companies that specialize in the recovery and treatment of construction waste. However, from the current point of view, there are still many urgent problems to be solved in the recovery and treatment of construction waste. The two key aspects are: First, the public's awareness of environmental protection and the classification and storage of construction waste are not strong, resulting in glass, wood products, muck, residual mud, concrete Wastes such as cement, cement casting, etc. are piled up, thus increasing the recovery of human, material, financial and reuse difficulties. Second, the lack of government input and the lack of new technologies, new processes and new equipment for the recovery process result in a low recovery rate. . Therefore, in order to make construction waste “turning waste into treasure,” the state's coercive force should be used to implement the regulations for the regulation, reduction and resource utilization of construction waste treatment.
First and foremost, governments at all levels should strengthen the promotion of laws and regulations such as the "Promotion Law of the People's Republic of China on Cleaner Production", "The Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Wastes" and "The Law of the People's Republic of China on the Promotion of Recycling Economy", and continue to promulgate it in accordance with local practices. Improve relevant rules and regulations, and adhere to strict laws, so that there can be laws to follow, laws must be followed, and all illegal acts such as illegal dumping, barbarous transportation, and environmental damage to construction waste will be eliminated. Together, we must establish a sound and consistent management system and useful operating mechanisms, avoid "single fights" of functional departments, and establish a scientific operating mechanism of "government promotion, enterprise-oriented, and social participation."
Secondly, the government's functional departments should strengthen the guidance on construction removal, construction, and implementation of on-site supervision and inspection of various procedures. For the constructions to be removed, guide the construction staff to classify and deposit them according to the nature of the construction materials, in order to reduce unnecessary costs when recovering the use; for new constructions, guide the construction unit to budget for the construction materials and reduce the construction materials due to excess Probability of conversion to construction waste. Together, we should strengthen the education of construction personnel, so that construction personnel realize the harmfulness of waste construction materials to individuals and the whole society. The unit or personnel responsible for quality supervision shall supervise the occurrence of such phenomena as cutting corners, cutting materials, and filling in order to reduce the occurrence of unnecessary construction waste caused by repairs, reinforcements, and even reconstruction.
Thirdly, governments at all levels must support and encourage special construction waste recovery companies to set up new equipment, and choose new processes and technologies to do a good job of construction waste recovery and treatment. After sorting, crushing, shaping, etc., The recovered construction waste is converted into new construction materials that can be recycled. Through industrial production and assembly operations, the traditional construction methods such as on-site casting and on-site manufacturing are changed to save construction materials and reduce construction waste.
In short, making construction waste “turning waste into treasure” into recycled environmentally friendly bricks is a social work and a systematic project. It requires the government to introduce supportive policies to accelerate the pace of urban construction waste recovery and use, and to promote continuous urban ecological environment. Improve.
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