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.
Download information from the Precast Concrete Handbook here.
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Noisewalls Windsor Road, Sydney
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Fremantle Rail Loop
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Advantages
· 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.
Applications
| · Roadways |
· Railways |
| · Bridges |
· Shopping Centres |
| · Parking structures |
· Tunnels |
| · Airports |
· Stadia. |
For more information regarding this product please refer to 2.4.2.4 of the Precast Concrete Handbook (click here to buy the Handbook) or talk to one of our Members.
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