Јанчиќ_8422-Минерална волна како материјал за звучна...
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1.
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(European Noise Policy).
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1.1
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.1.1
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6 dB.
.1.2
(Tr-
( )
60 Db).[1]
.1.2
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2.
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, ,...
1600 C.
6-10 m.
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2.
3.
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.2.1
5
http://bg.wikipedia.org/wiki/%D0%9C%D0%B8%D0%BA%D1%80%D0%BE%D0%BC%D0%B5%D1%82%D1%8A%D1%80http://bg.wikipedia.org/wiki/%D0%9C%D0%B8%D0%BA%D1%80%D0%BE%D0%BC%D0%B5%D1%82%D1%8A%D1%80http://bg.wikipedia.org/wiki/%D0%9C%D0%B8%D0%BA%D1%80%D0%BE%D0%BC%D0%B5%D1%82%D1%8A%D1%80http://bg.wikipedia.org/wiki/%D0%9C%D0%B8%D0%BA%D1%80%D0%BE%D0%BC%D0%B5%D1%82%D1%8A%D1%80 -
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Rw ( )
6 dB.
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Rw.
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1. 50 Rw
41 dB
2. 75
RW 44 dB
3. 100
Rw 47 dB (
Isover
)..[5]
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Rw (
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) :
1. ( )
2.
3. ,
..[5]
.2.2
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, ,
Rw 52 dB.
.2.2
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:..[5]
(kPa.s/m2) (kg/m3) Rw (dB)
6 10 48
8 +10 49
15 20 49
25 40 48
( )
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Tr = 0,4-0,8 s (125-4000Hz) V= 250m3. r. .
Tr ko 0.4 0.6 s V=250m 0.6 1 V=250-1000 m H=4m. .
..[1]
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(Isover,Knauf,URSA)
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Railway Tehnical Research Institute -
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2.1 [3]
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100mm
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1.www.isover.co.uk
2.www.Wikipedia.org
3.www.bre.co.uk/acoustics
4.www.fomofoam.com
5.isover prezentacija-powerpoint
6.www.rtri.or.jp
7.Gradjevinska fizika I materijali-Jugoslovensko drustvoa ispitavanje I istrazivanje
materijala I konstrukcija, Gradjevinski Fakultet Univerziteta u Beogradu
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http://www.isover.co.uk/http://www.wikipedia.org/http://www.bre.co.uk/acousticshttp://www.fomofoam.com/http://www.isover.co.uk/http://www.wikipedia.org/http://www.bre.co.uk/acousticshttp://www.fomofoam.com/