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).
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.
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.
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. Click here for Noise Walls product profile
Superior structural outcome
Off-site manufacture means high quality
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 materials handling
High quality surface finishes.Alternatavly, noise walls can be made using Glass Reinforced Concrete (GRC) – find out more about GRC here.