Rail Transit Sound Barrier
category：
Rail Transit Sound Barrier
keyword：
resistance
easy
sound
- DESCRIPTION
-
Aluminum plate sound absorption
Features of pinhole composite sound-absorbing aluminum plate: light weight, pollution-free, anti glare, anti-aging, impact resistance, freeze-thaw resistance, stable sound absorption coefficient, moisture resistance, corrosion resistance, easy bending and processing, easy transportation, easy disassembly and maintenance, reasonable cost performance, and can be sprayed with various colors.
Technical parameters of pinhole acoustic aluminum plate:
1. Noise reduction coefficient: NRC ≥ 0.70 in a 75mm cavity;
2. Sound insulation: ≥ 30dB;
3. Artificial accelerated weather resistance (250h): no powdering;
4. Salt spray corrosion resistance: Acidity for 1000 hours, appearance rating of 10, no pitting, bubbling, peeling or other corrosion phenomena;
5. Tensile load: ≥ 1305N;
6. Fire rating: Class A non combustible
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