Decoration waste has a complex composition of dozens of components, including: brick fragments, concrete blocks, aerated bricks, mortar, wall coverings, gypsum boards, waste sandstone blocks, broken glass, broken tiles, crushed stones, sand, steel bars, nails, aluminum alloys, plastics, foam, rock wool, glass fiber mesh cloth, construction waste wood, plastic products, rubber products, textiles, etc.
Current situation of resource utilization of decoration waste
The on-site situation and composition of decoration waste:
1. The bagging rate of decoration waste is high when it is transported in;
2. The phenomenon of front-end mixed loading and transportation is serious, and even contains garden waste;
3. High content of bamboo wood and lightweight building blocks (lightweight materials);
4. Mixed with some household waste, scrap metal, and asbestos;
5. It also contains a certain amount of toxic and harmful substances;
6. In addition, it was found that the content of soil in decoration waste is particularly prominent.
The composition is extremely complex and the proportion fluctuates greatly. The main influencing factors are as follows:
1. Local source classification and sorting management methods;
2. Operation path or mode;
3. House structure;
4. The degree of newness of the decorated house;
5. Unit or individual decoration preferences, etc;
6. Local cultural literacy;
7. The materials used in decoration are constantly changing.
Overall, the composition of decoration waste is extremely complex and volatile, and the differentiated management forms in the front-end further increase the complexity of its composition; Implementing front-end sorting and control of decoration waste is currently the most urgent and economical resource utilization mode.