StoneHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: DNA 1968, Tabelle a1-1
Hand-molded solid brick masonry with air cavity
PTB reference data
Original description
Hand-molded solid brick masonry with air cavity
Material properties
Thickness: 100 mm
Wall distance: 30 mm
Dimensions: 207 x 100 x 50 mm
Mounting: Lime-cement mortar, full joints, vertical joint 15 mm, horizontal joint 10 mm
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.14
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.15 | 0.15 | 0.10 | 0.10 | 0.10 |
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Method (354): Measured