Due to the boom in the garbage sorting industry in recent years, the garbage sorting and processing industry has undoubtedly become one of the most promising industries. The recycling of construction waste given by our company can be roughly the following ways:

 

1. Resource utilization of old wood and wood chips

 

As common construction waste, old wood and wood chips can be directly used as wood, or they can be improved and processed into composite boards, or broken wood, sawdust, etc. can be used in fuel composting raw material plants and erosion protection projects to achieve the purpose of making the best use of them.

 

2. Reuse of old bricks and tiles

 

Bricks produced by building demolition can be reprocessed and fired into unfired bricks, can be made into water-stable aggregates for paving foundation projects, and can even be reprocessed and fired into hollow bricks, cement raw materials, etc.

 

3. Resource utilization of old asphalt

 

Asphalt materials can be recycled after sorting and separation to make materials for paving road surface or base layer.

 

4. Resource Utilization of Old Concrete

 

As an important component of construction waste, concrete is also a component with great recycling value and has considerable utilization value. As mentioned above, concrete can be crushed into powder and used as a component of various additives or as a filler. At present, the research on the recycling of old concrete has been relatively mature. It is mainly used to produce recycled concrete and recycled cement.

 

The recycling of concrete can greatly save resources, such as limestone, natural stone and iron powder resources, and can also reduce coal burning through the reuse of resources, but it takes manpower to sort to remove the debris. Therefore, the in-depth application of engineering informatization can improve management efficiency and reduce the difficulty of resource recycling and treatment, and the reuse of resources will become more and more valuable.

 

5 Resource Utilization of Fine Powder

 

The further subdivision and utilization of fine powder in construction waste can improve the value of recycled materials and the comprehensive utilization efficiency of resources. If the fine powder is not processed and utilized, the reuse efficiency of construction waste will be reduced and it will cause pollution to the environment. Therefore, fine powder is an important part of the resource utilization of construction waste. By studying the composition of ground mineral admixtures of waste concrete and waste broken bricks and their related physical properties such as standard consistency at different finenesses, it is found that adding an appropriate amount of fine powder with a certain fineness into cement can improve cement performance.