Concrete Culverts | Large-scale infrastructure, permanent drainage | Material: Reinforced Concrete (Compressive Strength: 30 MPa) Load-Bearing: 20 tons/m² (ASTM C39) | High durability, long lifespan, minimal maintenance | Heavy weight (2.4 t/m³), installation requires heavy machinery, prone to cracking |
Steel Culverts (Base) | Residential drainage, moderate traffic | Material: Q235 Steel (Yield Strength: 235 MPa) Galvanized Coating: 85 µm (ASTM A153) Load-Bearing: 10 tons/m² (ASTM D3963) | Lightweight (2.5 t/m³), easy installation, cost-effective | Lower corrosion resistance, limited load capacity |
Steel Culverts (Advanced) | High-traffic roads, coastal regions | Material: Q345 Steel (Yield Strength: 345 MPa)▲▲ Galvanized Coating: 120 µm (ASTM A153)▲ Load-Bearing: 15 tons/m²▲▲ (ASTM D3963) | Enhanced corrosion resistance, high load capacity, 50% stronger than Base | Higher cost, requires skilled installation |
PVC Culverts | Light-duty drainage, temporary use | Material: PVC (Flexural Strength: 40 MPa) Chemical Resistance: ASTM D1796 compliant | Lightweight (1.4 t/m³), corrosion-resistant, UV-stabilized | Low load capacity (5 tons/m²), susceptible to temperature extremes |
Aluminum Culverts | Corrosive environments, lightweight needs | Material: 6061 Aluminum Alloy (Yield Strength: 240 MPa) Corrosion Resistance: ASTM B117 salt spray test (1,000+ hours) | Excellent corrosion resistance, non-magnetic, recyclable | Lower load capacity (8 tons/m²), higher cost than steel |
Reinforced Plastic | Chemical plants, non-conductive zones | Material: HDPE (Tensile Strength: 25 MPa) Chemical Resistance: ASTM D543 (50+ chemical exposures) | Non-corrosive, chemical-resistant, non-conductive | Brittle at low temperatures, UV degradation over time, low load capacity (3 tons/m²) |