Acoustic performance of non-homogeneous slabs
DOI:
https://doi.org/10.46421/entac.v19i1.2216Keywords:
Acoustic performance, Flooring systems, Laboratory tests, Impact noise, Airborne sound insulationAbstract
In this paper, the acoustic insulation characteristics for airborne and impact sounds of three types of slabs are presented, considering ribbed slabs of two thicknesses, beam/block slabs of two thicknesses and one solid concrete slab. Laboratory tests were carried out with ISO 10140 procedures. Results: a)hollow elements reduce airborne sound insulation and alter the spectral composition of the measured sound; b)the increase from 8 to 12cm in the height of the joist/tile slabs does not change the Rw ; c)in the ribbed slabs the increase of 10cm in the height of the beams does not influence the values of Ln,w.
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