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Noise Barrier For Metro Rail
1. Highways ,Flyovers & Railway track.
2. To cover Industrial premises.
3. Construction sites
4 Stadium & Clubs.
5. Residential premises.
Laboratory measurement of airborne sound as per IS-9901(Part III) 1981, DIN 52210 part IV 1984, ISO : 140 ( Part III) 1995.
Sound proofing class A4.
Sound deadening class B2 .
Type of wall - Double skin insulated wall.
Outside sheet Plain Aluminum alloy sheet, 1.2 mm thick.
Inside sheet (Traffic / source side) Skin 1.2 mm thick Aluminum alloy perforated sheet with 42% open area with 5 mm hole .
Weight - Approx 12.5 kg /Sq.m .
Acoustic material Polyester fiber, in two layers of 50 mm thick density 60 kg/m3 .
Middle sheet - Plain Aluminum alloy sheet, 1.2 mm thick.
Panel joint - Each panel having tong & groove to joint perfectly with each other .
Gasket - The panel and structure having gaskets at the joint to block noise leakage.
Vertical post / Structure - The structure is of H profile in which acoustic panel slides longitudinally .
Top cover: - all acoustic panel covered at top with top cover made of Aluminum alloy riveted to panel.
Powder Coating: - all metallic surface / parts are powder coated, the minimum thickness is 60 Mu.
The STC rating is 36.