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- Sound absorbing sawdust concrete hollow brick TECHBUD CS-24-1-30
1.1. General characteristics
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Fig. 1. Sound absorbing sawdust concrete hollow brick TECHBUD CS-24-1-30.
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| Technical characteristics
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CS-24-1-30 |
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1/2 hollow brick
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| Overall dimensions
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60 x 30 x 19 cm |
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30 x 30 x 19 cm |
| Hollow brick weight
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23 kg |
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| Sawdust concrete volume density
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min. 1000 kg/m3 |
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| Shear strength
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min. 5 MPa |
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| Freeze resistance
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full |
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1.2. Acoustic characteristics
Application:
Sound absorbing sawdust concrete hollow brick TECHBUD CS-24-1-30 is an element
for building sound absorbing acoustic baffle screens.
Acoustic properties:
Acoustic insulation of CS-24-1-30 concrete-filled hollow bricks baffle screen as
ITB tested - no 4010/NA-716/95 amounts to
Rav
= 55 dB
Characteristics of reverberated sound absorption coefficient  for elements made of sawdust concrete amounts to:
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0,10 |
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0,16 |
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0,40 |
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0,50 |
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0,60 |
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0,55 |
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0,40 |
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0,38 |
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| Hz |
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63 |
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125 |
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250 |
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500 |
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1.000 |
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2.000 |
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4.000 |
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8.000 |
| ATTENTION:
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Surfaces of sawdust concrete hollow bricks have outstanding
adhesion which guarantees a successful coating with various paints and varnishes
(e.g. by spraying), or other finishing materials. Painting the baffles takes place
after assembling acc. to the chosen graphical project (design).
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| CS-24-1-30 hollow bricks have:
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Technical Approval ITB - no 1100/94,
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Hygienic certificate PZH no B-741/95,
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Safety Sign Certificate no B-8/C-271/95, |
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Acoustic ITB tests no 4010/NA - 716/95.
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