PEACE AND QUIET ALONG LINE
THANKS TO OPTIMUM SOUND INSULATION
THANKS TO OPTIMUM SOUND INSULATION
Noise control along railway lines
Cisilent Type G was developed for use along high-speed lines. A noise barrier essentially consists of a concrete base with aluminium or concrete sound insulation elements placed on top.
These components are inserted into fixed steel girders. Cisilent Type G replaces rigid filling elements with a bend-resistant yet pliant open GRP shell, into which suitably manufactured Cisilent absorption cushions are affixed with adhesive. This allows span widths up to 5 m for speeds of up to 450 km/h.
In addition to sound transmission insulation and high absorption, Cisilent Type G offers the advantage of lightweight load-bearing shells and easy handling during installation. This means Type G is apt for an acoustic upgrade of bridges and elevated railways, the preferred construction type in Asia. Here, Type G is used as a low noise barrier fitted close to the track. As a special construction component, Type G helps to provide absorption surfaces to the load-bearing wall panels on bridge girders.
These components are inserted into fixed steel girders. Cisilent Type G replaces rigid filling elements with a bend-resistant yet pliant open GRP shell, into which suitably manufactured Cisilent absorption cushions are affixed with adhesive. This allows span widths up to 5 m for speeds of up to 450 km/h.
In addition to sound transmission insulation and high absorption, Cisilent Type G offers the advantage of lightweight load-bearing shells and easy handling during installation. This means Type G is apt for an acoustic upgrade of bridges and elevated railways, the preferred construction type in Asia. Here, Type G is used as a low noise barrier fitted close to the track. As a special construction component, Type G helps to provide absorption surfaces to the load-bearing wall panels on bridge girders.
Benefits
- Shell provides pliant response to torsion while remaining rigid when exposed to bending forces
- Low dynamic magnification factor thanks to high natural frequency with large gap to exciting frequency
- Light mass per unit area of ≈ 45 kg/m²
- Low stress loads on structure ensures long lifespan
- Corrosion-free, no leakage current
- No maintenance required
- Smooth surfaces means graffiti is easily removed
- Weatherproof and heat- and ozone-resistant
- Easy installation and removal
- Manual handling possible on construction site
SOLUTION FOR NOISE CONTROL
Description, application
Cisilent Type G comprises a GRP shell into which suitably manufactured Cisilent absorption cushions are affixed with adhesive.With proven performance over many years, the mesh fabric comes with a 10-year material warranty and protects the internal mineral fibre filling.
The flexible Cisilent absorption cushions imitate the movements of the supporting shell.
Dimensions are determined specifically for each project. Preferred height of the GRP shell 25-75 cm with a ribbing depth of around 16 cm.
