Core Technical Parameters of Plastic Construction Waste Chutes

Technical parameters of construction waste chutes are an important basis for selection, installation, acceptance and safe use. Longkang HDPE plastic construction waste chutes adopt a standardized design, and all parameters have undergone strict testing. This article introduces the core technical parameters in detail.

1. Specification Parameters

1. Material Parameters

HDPE raw material properties:

• Density: 0.945–0.955 g/cm³
• Tensile yield strength: ≥20MPa
• Elongation at break: ≥500%
• Charpy impact strength (23℃): ≥15kJ/m²
• Low-temperature embrittlement temperature: ≤-40℃
• Melt flow rate: 0.3–0.7 g/10min
• Shore hardness D: ≥60
• Carbon black content: 2%–3% (Weather-resistant)
• Oxygen index: ≥17% (Standard) / ≥26% (Flame-retardant)

III. Mechanical Performance Parameters

1. Pressure-bearing capacity

• Per-section vertical load capacity: Light-duty 200kg / Standard 400kg / Heavy-duty 600kg
• Overall pipe load capacity: calculated by fixing point spacing, ≤150kg per span
• Impact test: 5kg concrete block free-fall impact from 10m height, no cracks

2. Wind load resistance

• Design wind speed: 28m/s (Beaufort force 10 wind)
• Fixing point spacing: ≤4m
• Maximum pipe swing: ≤100mm

3. Connection strength

• Buckle tensile resistance: ≥5kN
• Sealing ring compression set: ≤20%
• Connection sealing: 0.05MPa air pressure, no leakage

1. Throughput Parameters

1. Environmental Parameters
2. Temperature range

• Operating temperature: -40℃ – +60℃
• Storage temperature: -20℃ – +40℃
• Transport temperature: -30℃ – +50℃
• High-temperature softening point: approx. 120℃ (HDPE melting point)

2. Weather resistance

• Outdoor UV aging: elongation retention ≥50% after 5 years
• Chemical corrosion resistance: acid-resistant, alkali-resistant, cement-slurry-resistant
• Water resistance: water absorption <0.01%

3. Noise performance

• Waste falling noise (500mm Standard): 60–70 dB(A)
• Measured at 1m distance
• 15–20 dB lower than steel

1. Interface Parameters
2. Standard section interface

• Connection type: socket-and-spigot + quick-release buckle
• Sealing ring: EPDM rubber, cross-section Φ8mm
• Interface diameter is the same as the pipe body
• Interface length: 50mm

2. Fixing clamp interface

• Clamp width: 50mm
• Clamp material: galvanized steel strip or stainless steel
• Bolts: M10 stainless steel
• A clamp position is provided at the middle of each section

3. Feed inlet parameters

• Feed inlet size: 300×400mm (Standard)
• With movable door: steel plate or plastic door
• Door sealing: rubber strip
• Door opening angle: 180°

4. Discharge outlet parameters

• Discharge outlet diameter: same as pipe body
• Can be connected to a canvas flexible joint
• Optional sealed door
• Optional dust extraction interface DN100

VII. Dimensional Tolerances

• Diameter tolerance: ±2mm
• Wall thickness tolerance: ±0.5mm
• Length tolerance: ±5mm
• Out-of-roundness: ≤3mm
• End face perpendicularity: ≤2mm

VIII. Safety Parameters

1. Feed inlet splash prevention: movable door and observation window provided
2. Bottom safety distance: discharge outlet to collection hopper ≤500mm
3. Protective net: protective net installed above the feed inlet
4. Warning signs: warning signs installed every 10m along the pipe
5. Grounding: grounding terminal provided for the anti-static type (optional)
6. Longkang Parameter Commitment

All Longkang technical parameters have been laboratory tested and engineering-verified; each shipment includes:

1. Product certificate
2. Material test report
3. Factory inspection record
4. User manual
5. Installation instruction drawing set