StoneHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe unter http://asonad.de, Feb. 2001
Asona Soundblox Type A Helmholtz resonator hollow concrete block
Helmholtz resonator – SOUNDBLOX Type A
PTB reference data
Original description
Asona Soundblox Type A Helmholtz resonator hollow concrete block
Material properties
Manufacturer: Asona Deutschland GmbH
Up to fire class: F-180
Application: wall
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.53
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.70 | 0.45 | 0.50 | 0.65 | 0.65 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Method (354): Measured