WHIS®stone
4Silence develops scientifically proven and easily integrable noise-reducing solutions for infrastructure. We use the principle of diffraction, the bending of sound. This enables noise reduction to be more attractive, sustainable, cost-effective, and efficient.
What is WHIS®stone?
The WHIS®stone is a durable concrete element that reduces traffic noise using the principle of diffraction. Positioned at road level alongside the carriageway, it achieves a consistent noise reduction of 2 dB, comparable to that of silent asphalt.
Unlike low-noise asphalt, which loses effectiveness over time (typically 0.5 dB per year), the WHIS®stone maintains its full noise-reducing performance throughout its lifespan. With a service life of over 50 years.
In addition to its acoustic benefits, the WHIS®stone also functions as a verge reinforcement and is fully safe to drive over for all types of vehicles.
The advantages
Easy to install
You can achieve production rates of 500 meters per day.
Cost effective
The lifecycle cost is approximately 70% lower than that of low-noise asphalt.
Safety
It is safely driveable for all types of traffic.
Long lifespan
The WHIS®stone has a lifespan of over 50 years, making it a highly sustainable choice.
Technical specifications
material
Grey contrete (also available is different colours)
Dimensions
Noise reduction
Reduction one row: 2,2 dB
Reduction dubble row: 2,6 dB
Installation and maintenance
• To be installed using a special clamp; for this, lateral recesses have been incorporated into the element.
• Production of up to 500 meters per day is achievable.
• The block must be properly founded.
• The foundation also serves as water storage.
• Maintenance: once every 2 years.
