StoneHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
Fonoleca nervato concrete block with expanded clay as cavity resonator
Cavity resonator – Fonoleca nervato
PTB reference data
Original description
Fonoleca nervato concrete block with expanded clay as cavity resonator
Material properties
Manufacturer: Associazione Nazionale Produttori Elementi Leca
Wall distance: 150 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.74
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.55 | 1.00 | 0.95 | 0.85 | 0.95 |
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Method (354): Measured