1M Tons/Year: How Construction Waste Becomes Green Building Materials?

With the continuous implementation of infrastructure and urban construction projects, construction waste in Hebei has been steadily increasing. How to efficiently process massive volumes of construction waste and turn it into valuable resources has become a critical challenge.

Leveraging years of experience in waste recycling, customized solution capabilities, and lifecycle service advantages, ZENITH successfully implemented the Hebei project under the full-scope EPC turnkey model, resolving the client's waste management challenges.

Project Overview

· Input Material: Construction debris, stone carving waste

· Product Size: Multi-grade recycled aggregates (0-5mm, 5-10mm, 10-15mm)

· Product Application: Supplied to local mixing stations and brick factories for producing commercial concrete and green cement bricks

· Service Model: EPC turnkey

· Core Capacity: 1 million tons of high-quality green aggregates annually

The project prioritizes aggregate output, quality, and environmental sustainability, rejecting "crude crushing" and establishing a standardized, large-scale, and eco-friendly waste recycling demonstration line.

Project Challenges

Recycling construction waste goes beyond simple crushing, presenting multiple difficulties:

Variable Material Hardness Compatibility:

The project processes both construction waste and stone carving waste, which differ significantly in density, hardness, and crushability. Conventional production lines struggle with such variations, often leading to rapid equipment wear, inconsistent particle shapes, and unstable output quality.

Stringent Soil and Impurity Removal Requirements:

Recycled aggregates for commercial concrete and cement bricks demand strict quality control. Residual soil, plastics, wood chips, and other impurities decrease aggregate strength, rendering the final product non-compliant with industry standards.

Ensuring compatibility between different hardness levels, effective impurity removal, stable annual output of 1 million tons, and consistent final product quality became the project's key technical challenges.

ZENITH's Customized Solution

To address these issues, ZENITH abandoned standardized solutions and tailored a dual-processing system capable of handling both soft and hard materials. This included multi-stage crushing, precise screening, and efficient impurity removal to guarantee project success.

Customized Process Design: Handling Soft & Hard Materials

The project innovatively employs separate processing systems for soft and hard materials—avoiding equipment mismatch while optimizing crushing efficiency and aggregate quality.

High-Performance Equipment Setup: Efficiency & Stability

ZENITH equipped the line with high-performance machinery, forming a full "Feeding → Coarse Crushing → Medium/Fine Crushing → Shaping → Screening" workflow:

· PEW Jaw Crusher: Handles primary crushing of large materials with high throughput.

· PFW Impact Crusher + HPT Cone Crusher: Performs medium/fine crushing, adaptably processing soft and hard materials.

· VSI6X Sand Maker: Shapes final aggregates for better gradation and particle form.

· S5X Vibrating Screen: Ensures precise screening for various aggregate specifications.

Smart & Eco-Friendly Design: Green & Cost-Efficient

The production line features dust removal, noise reduction, and sealed conveying systems, achieving zero pollution. An intelligent control system monitors operations in real time, reducing manual intervention, lowering maintenance costs, and ensuring long-term stability.

Project Benefits

ZENITH's tailored solution met regional waste disposal needs while boosting the circular economy, generating economic, social, and ecological benefits.

Economic Benefits: Waste-to-Profit Model

The project annually produces 1 million tons of green recycled aggregates, directly manufacturing 250,000 m³ of commercial concrete and 80 million green cement bricks, all supplied to local markets. Due to their superior quality, the aggregates are highly sought after by mixing stations and brick factories, ensuring steady sales and lasting economic returns.

Social Benefits: Pioneering & Replicable Model

As Hebei's first large-scale construction waste recycling project, it serves as a benchmark for "zero-waste city" initiatives and circular economy development. Its success provides a replicable model for neighboring cities.

Environmental Benefits: Sustainable & Eco-Conscious

The project establishes a closed-loop system: "construction waste in → multi-grade green aggregates out → zero pollution during production." It significantly reduces urban waste pollution, conserves land resources, and promotes regional sustainability.

From construction waste to 1 million tons of green aggregates annually, the Hebei project demonstrates the immense value of waste recycling.

ZENITH remains committed to delivering customized, efficient, and eco-friendly waste recycling solutions worldwide. With mature technology, robust equipment, and end-to-end services, we empower more projects to turn waste into wealth.