luofu white

Lightweight ECP Concrete Noise Barrier

Product Overview

Our Lightweight ECP (Extruded Cement Panel) Concrete Barrier is a high-performance acoustic solution specifically engineered for high-velocity transit, urban viaducts, and demanding municipal infrastructure.
By combining an advanced, eco-friendly phosphogypsum matrix with an extruded high-strength structural core, this system offers superior sound insulation, exceptional structural resilience, and a significantly optimized weight profile that minimizes structural loads.

It is the premier choice for highway openings, elevated expressways, tunnels, and noise-sensitive residential corridors.

A versatile, high-durability barrier system designed for long-term acoustic mitigation and mechanical stability in challenging outdoor climates.

Lightweight Cellular Concrete Noise Barrier (ECP Panel) for highway, composite noise barrier with transparent acoustic window panels
Lightweight Cellular Concrete Noise Barrier (ECP Panel), raw material panels with customizable multi-color options for noise barrier engineering

Product Series & Specifications

Technical Performance

Acoustic Performance

The system features a dual-function acoustic design that manages both sound absorption and transmission loss with industrial precision.

Broadband Absorption

Delivers a Noise Reduction Coefficient (NRC) of 0.70 ~ 0.90 (typically ≥ 0.75), effectively covering the full frequency spectrum from 125 Hz to 4000 Hz.

Tested via the reverberation room method (GB/T 20247-2006), its core advantage lies in mitigating low-frequency shockwaves while perfectly balancing sound absorption and insulation in accordance with HJ/T 90-2004.

High-Frequency & Traffic Isolation

With a sound reduction index (Rw) of 35.0 ~ 45.0 dB (typical Rw ≥ 38.0 dB), the 80 mm thick ECP panel demonstrates exceptional laboratory-tested (GB/T 19889.3-2005) acoustic blocking, significantly outperforming traditional solid concrete walls.

Acoustic Absorption Index

Achieves a high-performance absorption coefficient of ≥ 0.85 at target critical frequencies.

Insertion Loss Excellence

Field-tested reduction reaches 15.0 ~ 35.0 dB(A) (typical ≥ 18.0 dB(A); fully enclosed configurations achieve ≥ 25.0 dB(A)) in compliance with GB/T 19889.4-2005.

This makes it perfectly adaptive to open tunnel sections, high-speed rails, and dense residential surroundings.

Structural & Mechanical Performance

Engineered for high-wind environments and high-velocity transit zones without compromising safety.

Aerodynamic & Wind Stability

Rated to withstand wind pressure loads of ±4.5 ~ ±6.0 kPa.

The standard configuration withstands Grade 11 to 13 typhoons (wind speeds of 30.0 ~ 41.4 m/s).

The structural design optimizes wind load distribution, maintaining:

  • Maximum elastic deflection: < Ls/120
  • Residual deformation: < Ls/550

Ideally suited for coastal, high-altitude, and tunnel-mouth draft conditions.

Impact Resilience

Formulated with a high-tenacity concrete recipe.

Post-impact testing shows:

  • Zero breakage
  • Zero penetrating cracks
  • Surface indentation ≤ 2.5 mm
  • No visible structural distortion

The superior ductility meets rigorous engineering criteria, ensuring maximum safety in high-density traffic corridors.

Optimized Drag Coefficient

Features a highly flat surface geometry:

  • Flatness ≤ 0.1 mm/m
  • Wind resistance coefficient: 0.45 ~ 0.65
  • Typical coefficient: 0.50 ~ 0.58

This is significantly lower than traditional concrete barriers, reducing fatigue loads on steel H-posts and foundations.

Material & Construction Benefits

Advanced Composite Matrix & Core

Fabricated utilizing industrial by-product phosphogypsum and other green raw materials.

This achieves an eco-friendly core that balances a lightweight profile with high-strength characteristics:

  • Compressive Strength ≥ 15 MPa

Fully aligned with modern Green & Low-Carbon construction standards.

Precision Structural Parameters

  • Panel Thickness: 60–100 mm
  • Standard Configuration: 80 mm
  • Diagonal Error: ≤ 1 mm

Recommended configurations:

  • 80–100 mm panels for heavy transit tunnels
  • 60–80 mm panels for municipal roads

Delivering superior acoustic blocking at only two-thirds the thickness of conventional panels.

Ultra-Lightweight Profile

Surface Density:

  • 48.0 ~ 72.0 kg/m²
  • Standard: 56.0 ~ 64.0 kg/m²
  • Ultra-Light Version: ≤ 50.0 kg/m²

Reduces structural self-weight by 20% ~ 30% compared with traditional concrete barriers.

Standardized Modular Dimensions

Available dimensions:

  • Length: 1000 mm – 6000 mm
  • Width: 500 mm – 1000 mm

Common modules:

  • 2000 × 800 mm
  • 2500 × 800 mm
  • 1500 × 600 mm (70 mm thickness)

Designed to integrate seamlessly with existing steel H-post systems.

Durability, Safety & Standards

Maximum Corrosion & Weather Resistance

Protected with professional hydrophobic waterproofing treatment.

Salt spray resistance:

  • ≥ 2500 hours

No structural degradation, cracking, or deformation.

Resistant to:

  • UV exposure
  • Acid rain
  • Alkali environments
  • Moisture erosion

Thermal Endurance

Operating temperature range:

  • -40°C to +85°C

No seasonal thermal expansion issues or structural cracking.

Design Service Life

Engineered for a service life of:

≥ 50 years

Matching the lifespan of supporting civil and bridge infrastructure.

Fire Safety Rating

Certified:

Grade A (A2 Non-combustible)

Compliant with:

GB 8624-2012

Withstands temperatures exceeding 1000°C without:

  • Combustion
  • Dripping
  • Toxic smoke emission
  • Hazardous gas release

Suitable for tunnels, industrial zones, and municipal viaduct projects.

BENEFITS OF LUOFU HIGHWAY METAL NOISE BARRIER

1. Robust structural design ensures long-term structural safety.
2. Excellent noise reduction performance with a wide coverage range.
3. Deep expertise in acoustic R&D, backed by an independent R&D system.
4. Full-chain independent production with a comprehensive product lineup.
5. Supported by automated production lines, ensuring consistent precision in finished products.
6. Sophisticated anti-corrosion processes, ensuring a long service life in outdoor environments.
7. Rapid response throughout the entire pre-sales process, providing one-stop technical support.
8. Extensive experience in engineering projects, with a wealth of case studies both domestically and internationally.
9. Comprehensive after-sales service and flexible supply solutions, capable of handling both large and small orders.

Related Noise Barrier Products

Technical Support & Custom Services

We provide project-specific structural integration, custom H-post spacing layouts, and customized NRC/Rw optimization for specialized highway and rail applications.

Need Engineering Assistance?

For technical consultations, structural calculation sheets, or custom panel lengths (up to 6000 mm), please feel free to contact our engineering department.