Acoustic Barrier INSA PMMA
NOISE PROTECTION SYSTEM
PRODUCT DESCRIPTION
INSAMETAL designs, supplies and installs transparent acoustic barriers. Their advantages are their transparency and better visibility. These barriers are usually installed in railway and highway infrastuctures as a solution to alleviate the high noise levels.
These panels are main composed of polymethyl methacrylate (PMMA). The PMMA barrier is fited to the stiffening frames which in turn are fitted to the supporting structure. EPDM sealing rubber is used to ensure the correct fit.
TREATMENTS: Hot-dip galvanized according to UNE EN ISO 1461 Thermo-lacquered according to UNE EN 15773
BARRIER COMPOSITION
1. Support beam in structural steel S-275-JR 2. Stiffness frames 3. PMMA or Polycarbonate 4. EPDM rubber gasket 5. Concrete plinth (optional)
*All metal components are pre-treated by hot-dip galvanising and a thermo-lacquered finishing in any RAL colour, according to UNE EN ISO 1461 and UNE EN ISO 15773 respectively.
Consult available PMMA colours.
TECHNICAL PARAMETERS
PMMA | |||
COMPOSITION | Methyl | 15-20 mm | UNE EN - ISO 1183 |
SOUND ATTENUATION | 30-31.50 db | 30-35 db | UNE EN - ISO 1793-2 |
TENSILE STRENGTH | 92% | 120% | UNE EN - ISO 527 |
TRANSPARENCY | 90% | 80-90% | AST D1003 |