With the rapid development of economy and the accelerating process of urbanization, environmental pollution has become an important issue of general concern and urgent need to be solved. Among them, the garbage generated by industry and construction is being treated at the rate of tens of thousands of tons per day, which is eroding the environment we rely on for survival. People are also suffering from the trouble and harm of garbage siege while enjoying urban civilization.
Types and causes of construction waste:
Construction waste is divided into garbage generated during the demolition of buildings and garbage generated during the construction of buildings. The source of demolition waste is mainly the demolition of old buildings during the reconstruction of old cities, including the demolition of buildings caused by natural disasters such as earthquakes. Construction waste is mainly generated from the construction operation process and surplus materials.
Classification and recycling of construction waste:
According to the different locations of garbage classification, it can be divided into local classification and non local classification. In situ classification refers to the classification of construction waste at the construction site. Local classification requires effective management in construction, improves the requirements for management, occupies construction space and affects the normal construction on site, so the construction company is unwilling to adopt this method.
Non local classification refers to the transportation of construction waste from the construction site to the waste transfer station for classification. It reduces the space and labor used by construction units for construction waste treatment, and avoids the impact of construction waste classification on normal construction. However, because construction waste has been mixed, it is difficult to classify it, but it increases the difficulty of recycling construction waste.
Due to the use of backward building materials and pure manual operation, it will inevitably cause material damage and waste. In addition, due to poor management, a large amount of construction waste will be generated. To greatly reduce construction waste, on the one hand, it requires strengthening construction management and taking measures in the organization of design and construction, that is, careful planning and organization at all stages of construction. On the other hand, we should vigorously promote new technologies and processes, and adopt new building materials.
The outlet of construction waste recycling lies in the specialization and industrialization of construction waste treatment. On the one hand, we need to strengthen the scientific research on the recycling of construction waste and professionalize the treatment of construction waste. On the other hand, the industrialization of construction waste will be promoted by adopting preferential policies, standardization of construction waste products and other measures. In short, the resource treatment of construction waste is the inevitable trend of construction waste treatment. Its development is conducive to the construction of urban environment, and also makes a great contribution to the sustainable utilization and development of resources.
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