Construction Waste Recycling Solutions
Intro
With rapid urbanization and infrastructure development, construction and demolition (C&D) waste has become a major environmental challenge. Recycling this waste into reusable materials not only reduces landfill pressure but also conserves natural resources and lowers carbon footprints. A construction waste recycling plant production line transforms debris such as concrete, bricks, tiles, and metal into high-quality recycled aggregates and other products.
Construction Waste Recycling Plant
A construction waste recycling plant production line is a cornerstone of sustainable urban development. By integrating advanced crushing, sorting, and washing technologies, these facilities transform debris into valuable resources, driving the transition toward a circular economy. As governments and industries prioritize green practices, investing in efficient recycling infrastructure will remain critical to achieving global sustainability goals while meeting the growing demands of the construction sector.
Case
100tph Construction Waste Mobile Crushing Line
MATERIAL: Construction Waste
OUTPUT SIZE: 0-10mm,10-20mm,20-40mm
CAPACITY: 100 TPH
Key Equipments
Jaw Crusher
Cone Crusher
Mobile Crusher
Process Description
1. Waste Collection and Transportation
Construction waste, including demolished concrete, asphalt, wood, plastics, and metals, is collected from demolition sites, renovation projects, or roadworks. Specialized trucks transport the mixed debris to the recycling plant. Pre-sorting at the source (e.g., separating metals or hazardous materials) improves recycling efficiency.
2. Pre-Sorting and Manual Screening
Upon arrival, the waste undergoes pre-sorting to remove non-recyclable or hazardous materials (e.g., asbestos, glass, insulation). Workers or excavators with grapples manually separate large items, while trommel screens or vibrating grizzly feeders filter out soil and small contaminants.
3. Primary Crushing
Large chunks of concrete, bricks, and asphalt are fed into a jaw crusher or impact crusher for primary crushing. This stage reduces the material to manageable sizes (50–150 mm) and breaks down reinforced concrete by separating embedded rebar. A magnetic separator extracts ferrous metals (e.g., steel bars) from the crushed debris for recycling.
4. Secondary Crushing and Screening
The coarsely crushed material is further processed in a cone crusher or impact crusher to produce smaller particles (10–50 mm). A multi-deck vibrating screen then classifies the output into different grades:
Coarse aggregate: 20–50 mm (for road base or drainage layers).
Medium aggregate: 5–20 mm (for concrete production).
Fine aggregate: 0–5 mm (as sand substitute).
Oversized materials are recirculated to the crushers in a closed-loop system.
5. Advanced Sorting and Contaminant Removal
To ensure product purity, advanced sorting technologies are employed:
Air classifiers: Separate lightweight materials (e.g., wood, plastics) from heavy aggregates.
Eddy current separators: Recover non-ferrous metals (e.g., aluminum, copper).
Optical sorters: Use AI-powered sensors to identify and remove residual contaminants.
6. Washing and Dewatering (Optional)
For high-quality recycled sand or aggregates, a sand washing machine removes dust, clay, and organic residues. A dewatering screen or hydrocyclone then reduces moisture content, ensuring the material meets construction standards (e.g., 0-3% moisture).
7. Production of Recycled Products
The processed materials are repurposed into:
Recycled concrete aggregate (RCA): Used in new concrete mixes, road bases, or landscaping.
Recycled asphalt pavement (RAP):Reprocessed into asphalt for road resurfacing.
Metal scraps: Sold to smelters for reuse.
8. Storage and Distribution
Final products are stored in segregated stockpiles or silos. Automated loading systems transfer materials to trucks for delivery to construction sites, ready for reuse in:
Concrete batching plants
Road construction
Landscaping and erosion control
