ABSORPTION COEFFICIENTS - acoustic

ABSORPTION HzMATERIALTHICKNESS125250500100020004000 MASONRY WALLSR ough concrete0,020,030,030,030,040,07 Smooth unpainted concrete0,010,010,020,020,020,05 Smooth concrete, painted or glazed0,010,010,010,020,020,02 Porous concrete blocks (no surface finish)0,050,050,050,080,140,2 Clinker concrete (no surface finish)0,100,200,400,600,500,60 Smooth brickwork with flush pointing0,020,030,030,040,050,07 Smooth brickwork with flush pointing, painted0,010,010,020,020,020,02 Standard brickwork0,050,040,020,040,050,05 Brickwork, 10mm flush pointing0,080,090,120,160,220,24 Lime cement plaster on masonry wall0,020,020,030,040,050,05 Glaze plaster on masonry wall0,010,010,010,020,020,02 Painted plaster surface on masonry wall0,020,020,020,020,020,02 Plaster on masonry wall with wall paper on backing paper0,020,030,040,050,070,08 Ceramic tiles with smooth surface0,010,010,010,020,020,02 Breeze block0,200,450,600,400,450,40 Plaster on solid wall0,040,050,060,080,040,06 Plaster, lime or gypsum on solid backing0,030,030,020,030,040.

ABSORPTION COEFFICIENTS www.akustik.ua FREQUENCY Hz MATERIAL THICKNESS 125 250 500 1000 2000 4000 MASONRY WALLS Rough concrete 0,02 0,03 0,03 0,03 0,04 0,07 Smooth unpainted concrete 0,01 0,01 0 ...

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  Absorption, Coefficients, Absorption coefficients

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