Under Ballast Mat (Standard Vibration Attenuation)

SFFST Resilient Under Ballast Mat is an area-source vibration and noise isolation layer engineered specifically for ballasted track systems. Installed directly beneath the ballast bed, it forms a continuous elastic layer that blocks dynamic traffic loads and vibrations from transmitting into the subgrade. By reducing track support stiffness, it effectively interrupts medium-to-high frequency structure-borne noise and ground-borne vibration. Both faces feature a tough, pliable protective coating to prevent puncture or abrasion from sharp ballast stones, ensuring long-term elastic performance under sustained pressures and millions of dynamic load cycles.

Core Advantages

• Effective Area-Source Isolation: Reduces track bed stiffness to significantly block medium-to-high frequency structure-borne noise and ground vibration transmission.
• All-Weather Reliability: High puncture resistance with minimal stiffening even at low temperatures, alongside superior electrical insulation.
• Fast & Flexible Installation: Easy to cut on-site to fit complex terrain and contours, ensuring rapid and cost-effective deployment.

Technical Specifications

• Density Range: 200 – 850 kg/m³ (Customizable)
• Thickness Options: 10 – 50 mm (Standard sizes: 12.5 mm, 25 mm, 50 mm; fully customizable)
• Color: Customizable

Testing Standards

GB/T 39705, EN 17282, DIN 45673-5

Application Scenarios
Ideal for ballasted mainlines, urban transit systems, tunnels, and elevated bridges where strict environmental noise and vibration limits apply.