Application of Construction Waste Chutes in Old Building Demolition Works

Demolition works of old buildings involve large waste volume, large block size, and strong impact, imposing higher requirements on the chute. The Longkang HDPE Heavy-duty construction waste chute is suitable for demolition works. This article introduces its application.

1. Characteristics of Demolition Works

Large waste volume: 30–50 m³ daily throughput

Large block size: concrete blocks up to 300–450 mm

Strong impact: large blocks cause heavy impact on falling

Unstable structure: the structure changes at any time during demolition

Tight schedule: demolition works require speed

1. Longkang Dedicated Solution for Demolition Works
2. Equipment Selection

Diameter: 600 mm Heavy-duty

Wall thickness: 10–12 mm

Per-section load capacity: over 800 kg

Wear-resistant HDPE

2. Buffering Design

Buffer section every 15 m

Double-layer buffering at the bottom

Wear-resistant lining on inner wall

3. Fixing Design

Chemical anchors anchored into the structure

One fixing point every 3 m

Triangular bracket reinforcement

4. Feed-in Protection

Grid installed at the feed inlet (to intercept oversized blocks)

Sealed feed inlet door

Protective mesh

III. Coordination with Demolition Process

Top-down demolition: the pipeline extends downward along with demolition progress

Feed inlet on each floor: demolition and feeding proceed floor by floor

Continuous bottom clearance: equipped with collection hopper + clearance truck

Demolition and clearing simultaneously: waste does not accumulate

1. Key Safety Points

As the structure changes during demolition, fixing points must be inspected frequently

Prevent blockage by large blocks

Warning zone set up at the bottom

Inspect pipeline integrity daily

Replace damaged sections immediately upon discovery

1. Coordination with Demolition Machinery

Manual demolition: the chute operates efficiently

Mechanical demolition: large blocks handled by machinery, small blocks go through the chute

After crushing: concrete blocks crushed below 400 mm go through the chute

1. Advantages

High efficiency: 5 times faster than tower crane lifting

Low cost: reduces machinery shifts

Safe: prevents objects falling from height

Eco-friendly: sealed conveyance reduces dust

Durable: Heavy-duty model adapts to strong impact

VII. Longkang Demolition Works Service

Longkang provides for demolition works:

Heavy-duty dedicated equipment

Wear-resistant lining accessories

Gridded feed inlet

Quick installation

On-site technical support