StoneHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Proudfoot Soundblox Type R slotted concrete masonry block with fiberglass
Type R – Soundblox
PTB reference data
Original description
Proudfoot Soundblox Type R slotted concrete masonry block with fiberglass
Material properties
Manufacturer: Proudfoot Co.
Thickness: 12 inches
Wall distance: 0 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.60
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.50 | 0.85 | 0.85 | 0.55 | 0.45 | 0.45 |
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Method (354): Measured