In recent years, with the accelerated pace of urbanization in my country, the number of building demolition and urban renewal projects has continued to increase, leading to a surge in the amount of construction waste generated. Statistics show that construction waste now accounts for over 40% of municipal solid waste. Efficiently and environmentally friendly disposal of this waste has become a key issue for sustainable urban development. Mobile construction waste recycling and crushing stations, with their flexibility, high processing efficiency, and controllable recycled aggregate quality, are becoming a key component of “zero-waste” construction sites.
Policy Driven: The Inevitable Trend of Zero-Waste Construction Sites
National and local governments have successively introduced numerous policies requiring construction companies to utilize construction waste as a resource. For example, cities like Beijing, Shanghai, and Shenzhen have clearly mandated that new projects use a certain percentage of recycled aggregate. Some cities also implement differentiated construction waste disposal fees, charging additional fees for direct landfills and providing subsidies for on-site resource recovery projects. Mobile crushing stations for construction waste recycling can be driven directly to demolition sites for on-site crushing, screening, and sorting, significantly reducing waste transportation and landfill volume, perfectly aligning with policy guidance.
Recycled Aggregate Quality: Comparable to Natural Aggregate
Many people worry about the quality of recycled aggregate. In fact, advanced mobile crushing station configurations (such as multi-stage crushing, vibrating screening, and iron removal) can process waste materials such as concrete blocks and bricks and tiles into recycled aggregate with fine particle size and low impurity content.
Fine aggregate can be used to produce recycled mortar and recycled concrete blocks;
Coarse aggregate can be directly used in road base layers and recycled concrete structures;
Scrap rebar can also be separated and recycled.
This not only reduces reliance on natural sand and gravel but also creates additional revenue for construction companies.
Economic Analysis of On-Site Crushing
Compared to the traditional “centralized processing” model, on-site crushing offers significant economic advantages:
Saved Transportation Costs: Construction waste transportation costs account for 30%-50% of processing costs; on-site crushing can significantly reduce this expense.
Reduced Time Loss: Eliminates the need for multiple loading and unloading operations and long-distance transportation, accelerating construction progress.
Secondary Revenue Generation: Recycled aggregate can be sold directly or used in project construction, reducing procurement costs.
Reduced Environmental Penalties: On-site pollution such as dust, noise, and leachate is more easily controlled, complying with environmental regulations.
Typical Application Cases
In a large-scale urban renewal project, the construction company introduced a crawler-mounted mobile crushing station for recycling construction waste to crush demolition waste on-site. In just three months, the processing capacity reached 50,000 tons, saving approximately 800,000 yuan in transportation costs. The recycled aggregate produced was entirely used for internal project roads and backfill, achieving both economic and environmental benefits.
Future Development Trends
With the continuous advancement of technology and increasingly stringent environmental regulations, mobile crushing stations for recycling construction waste will continue to develop in an intelligent and modular manner. The addition of features such as automatic sorting, particle shape optimization control, and online monitoring will further enhance their role in construction waste treatment.