Acoustic Barrier Attenuation: concrete_wall
Sound barrier insertion loss and noise reduction data for highway, industrial, and residential acoustic barriers — concrete, masonry, earth berm, metal, timber, acrylic, absorptive, jersey barrier, and composite types. Includes STC rating, octave-band transmission loss (125–4000 Hz), insertion loss at Fresnel numbers 5 and 10, NRC, lifespan, and installed cost per FHWA-HEP-10-025, ISO 9613-2, and Bies & Hansen Engineering Noise Control.
| barrier type | material | Fresnel number method | STC rating (dimensionless) | TL 1000Hz dB (dB) | TL 125Hz dB (dB) | TL 2000Hz dB (dB) | TL 250Hz dB (dB) | TL 4000Hz dB (dB) | TL 500Hz dB (dB) | barrier height ft (ft) | cost per sf installed (USD/sf) | expected lifespan years (years) | insertion loss dB at 10dB Fresnel (dB) | insertion loss dB at 5dB Fresnel (dB) | surface density lb per ft2 (lb/ft2) | weather resistance |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| concrete_wall | Dense precast concrete (100mm; 244 kg/m2) | yes | 50 | 48 | 32 | 52 | 37 | 55 | 42 | 8 | 24 | 50 | 10 | 5 | 50 | excellent |
| concrete_wall | Dense precast concrete (150mm; 300 kg/m2) | yes | 54 | 52 | 36 | 56 | 41 | 58 | 46 | 10 | 28 | 50 | 11 | 5 | 61 | excellent |
| concrete_wall | Dense precast concrete (200mm; 390 kg/m2) | yes | 58 | 56 | 39 | 60 | 44 | 62 | 50 | 12 | 34 | 50 | 12 | 5 | 80 | excellent |
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