① The degree of classification and collection of construction waste is not high, and only the vast majority can be collected through mixed collection.

② The recycling rate of construction waste is low.

③ The technology level of construction waste treatment and resource utilization in China is backward, and direct landfill is often used for urban construction waste treatment, which not only occupies land but also pollutes the environment.

④ The investment in urban construction waste treatment is low, policies and regulations are not yet sound, and the environmental awareness of construction workers is not strong.

The country is currently engaged in large-scale infrastructure construction, and the volume of construction waste is bound to increase. The prospect of recycling is promising. When I visited the Southern Road Construction Waste Recycling and Utilization Project before, I heard that the country and local governments still support this area and will provide varying degrees of subsidies.

Basically, there are construction waste treatment plants in every place that are specifically designed to collect this construction waste. We have a large construction waste recycling industrial park in Heze, which not only simply disposes of construction waste, but also carries out resource utilization of construction waste to achieve the goal of recycling and reuse.

The recycling of construction waste is a good way, and many places have started to build construction waste recycling plants. Through sorting, crushing, screening, and conveying processes, recycled micro powders, recycled fine aggregates, and recycled coarse aggregates are produced. Recycled aggregates are used to produce recycled concrete, recycled mortar, and recycled water stabilized crushed stone.