Noise Walls

Noise walls (also known as acoustic, sound or noise barriers) are precast concrete elements that are designed to inhibit the transmission of sound waves. There are 3 basic types (all of which can be manufactured with a variety of finishes).

Reflective Barriers
Generally are placed at the road edge to reflect traffic noise. Some sound still passes over the barrier but there is a reduction in overall noise level behind the barrier. Reflective barriers are typically higher than other types.

Dispersive Barriers
These disperse the noise upwards and/or downwards due to their inclination and surface pattern. They are often considered to be a variation of the reflective barrier.

Absorptive Barriers
Sound is absorbed and dissipated by sound wave pressure moving through a carefully designed membrane or passage. These barriers generally use a propriety system for the sound absorption. Generally they are not effective for wide easements.
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  • Superior structural outcome
  • Quality product
    •  Off-site manufacture means high quality
  • Durable
    •  High strength, factory produced, long life precast concrete offers the ultimate outcome with minimal maintenance
  • High load capacity
  • Reduction in formwork and propping
  • A sustainable solution
    •  Significant sustainability advantages through de-materialisation
  • Faster construction time
    •  Quick installation by highly skilled crews
    •  Less weather dependent
  • Simplified and safer construction process
    •  Less trades on site
    •  Less exposure to OHS and industrial relations risks
    •  Less waste
    •  Less materials handling
  • High quality surface finishes.Alternatavly, noise walls can be made using Glass Reinforced Concrete (GRC) – find out more about GRC here.


  • Roadways
  • Railways
  • Bridges
  • Shopping Centres
  • Parking structures
  • Tunnels
  • Airports
  • Stadiums