- Sound absorbing sawdust concrete slab
TECHBUD CS-50-OT
3.1. Slab technical characteristics
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Fig. 1. Sound absorbing sawdust concrete slab TECHBUD CS-50-OT
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| Technical characteristics
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CS-50-OT |
| Overall dimensions
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50 x 25 x 13 cm |
| Hollow brick weight
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11,5 kg |
| Sawdust concrete volume density
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min. 1000 kg/m3 |
| Shear strength
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min. 5 MPa |
| Freeze resistance
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full |
3.2. Acoustic characteristics
Application:
Sound absorbing sawdust concrete slab TECHBUD CS-50-OT is sound absorbing facing of
acoustic
concrete baffle screens fixed on the side of sound emission.
Acoustic properties:
Acoustic insulation of sound absorbing sawdust concrete slab TECHBUD CS-50-OT as
evaluated empirically from "law of mass" amounts to:
Rav
= 19 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 |
Sound absorbing sawdust concrete slab TECHBUD CS-50-OT including
concrete slab and acoustic baffle construction makes an acoustic strusture which
functions as screen isolating from sound source and at the same time the side facing
sound source reflects, scatters and absorbs sound.
Shape of sound absorbing sawdust concrete slab TECHBUD
CS-50-OT as well as air spaces (grooves) in the shape of half-cylinder create a set
of resonators, which is why this slab is characterized by high sound absorption
coefficient in a narrow frequency band, overlapping with band of extremes in traffic
noise.
| 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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| slab CS-50-OT has:
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Patent claim for "utility model" no W-104331 at RP Patent Office.
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