Sontech International AB provides advanced noise barrier solutions using patented Acustimet® and
VIBRALON 25 SB technologies to reduce noise pollution in urban and industrial environments.
About Sontech International AB
With over 30 years of expertise, Sontech International AB is a global leader in acoustic solutions. Our noise barrier technologies, including Acustimet® and VIBRALON 25 SB, are designed to mitigate airborne and structure-borne noise in highways, industrial sites, and urban areas, ensuring quieter and more comfortable environments.
From concept to installation, we provide tailored noise barrier solutions for governments, contractors, and industries, delivering durable, sustainable products that meet stringent noise regulations.
Our Noise Barrier Solutions
Acustimet®
Acustimet® employs microperforated panels to absorb airborne noise in noise barriers, reducing sound transmission from highways and industrial sites. Its lightweight and weather-resistant design ensures long-term performance.
VIBRALON 25 SB
VIBRALON 25 SB is a viscoelastic material that dampens structure-borne vibrations in noise barrier foundations, minimizing noise leakage and enhancing structural stability with eco-friendly properties.
How Noise Barriers Works
Noise barriers are critical for reducing sound transmission in environments like highways, railways, and industrial facilities. Noise pollution, primarily airborne, originates from sources such as vehicle traffic (60–80 dB(A)), industrial machinery (80–100 dB(A)), or trains (90–110 dB(A)). Structure-borne noise, transmitted through vibrations in the ground or barrier foundations, can also undermine barrier effectiveness, especially at low frequencies (20–200 Hz).
Airborne noise is characterized by sound waves traveling through the air, with mid-to-high frequencies (500–4000 Hz) being most disruptive in urban settings. For example, traffic noise peaks around 1000 Hz due to tire-road interactions, while industrial machinery generates broadband noise up to 3000 Hz. Effective barriers must absorb or reflect these waves to prevent diffraction over the barrier top, which can reduce attenuation by 5–10 dB if not addressed.
Sontech’s Acustimet® uses microperforated panels to achieve a high absorption coefficient (α > 0.9) in the 500–4000 Hz range. Based on Helmholtz resonance, it traps sound waves in tiny perforations, dissipating energy as heat and reducing noise by up to 15 dB. Its lightweight (under 2 kg/m²) and weather-resistant design makes it ideal for outdoor barriers, maintaining performance in rain, UV exposure, and temperature fluctuations.
Structure-borne noise, often caused by ground vibrations from heavy vehicles or machinery, requires damping to prevent resonance in barrier foundations. VIBRALON 25 SB, with a loss factor (η > 0.2), converts vibrational energy into heat, reducing low-frequency noise transmission by up to 10 dB. Its viscoelastic properties ensure stability in barrier bases, while its eco-friendly composition complies with ISO 14001 standards.
In real-world applications, Sontech’s noise barriers achieve total noise reductions of 20–30 dB, meeting standards like EN 1793 for road traffic noise. By combining Acustimet®’s absorption with VIBRALON 25 SB’s damping, our solutions minimize both airborne and structure-borne noise, enhancing community well-being and regulatory compliance. Our barriers are also customizable for aesthetic integration into urban landscapes.
Applications for Noise Barriers
Sontech’s noise barrier solutions are designed for diverse applications, including:
- Highways and Railways: Reducing traffic and train noise to protect nearby communities.
- Industrial Facilities: Mitigating machinery noise to ensure worker safety and compliance.
- Urban Areas: Creating quieter residential and commercial spaces with aesthetically pleasing barriers.
Our solutions deliver effective noise control across various environments.
Why Choose Sontech for Noise Barriers?
Patented Technologies
Acustimet® and VIBRALON 25 SB provide superior noise reduction for effective barriers.
Custom Solutions
We design tailored noise barriers for specific environments and aesthetic needs.
Sustainability
Our eco-friendly materials support sustainable noise control solutions.
Frequently Asked Questions
What are noise barriers?
Noise barriers are structures designed to reduce sound transmission from sources like traffic or machinery, protecting nearby communities.
How does Acustimet® enhance noise barriers?
Acustimet® absorbs airborne noise with microperforated panels, reducing sound transmission in outdoor environments.
Why is VIBRALON 25 SB used in noise barriers?
VIBRALON 25 SB dampens vibrations in barrier foundations, minimizing structure-borne noise leakage.
Contact Us for Noise Barrier Solutions
Create quieter environments with Sontech’s advanced noise barrier solutions. Contact us today for expert consultation.
Or reach us at: info@sontech.se | +46 8 445 60 60
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