Wood-cement
composites are widely utilized in many countries for both interior and exterior
applications because of their strength properties for building materials (e.g.,
siding, roofing, cladding, fencing and sub-flooring) and for acoustic
properties such as in highway sound barriers. These composites have unique
advantages over other conventional materials. Generally, these products combine
the good qualities of cement (relatively high resistance to water, fire fungus,
and termite infestation coupled with good sound insulation) with those of wood
(high strength to weight ratio and workability). While
reflective products like concrete have been the traditional material for
outdoor noise barrier walls & enclosures, the advanced sound-absorptive
materials found in Cement-bonded particle board products present a much more
effective abatement option. Products like concrete or brick simply bounce sound
waves off their surface in different directions. Cement-bonded particle board
products actually absorb or completely eliminate the sound waves that hit them,
significantly reducing overall noise. In this paper, acoustic performance of
Cement-Bonded Particle Boards for applications will be discusses in different
construction models. In this paper, sound transmission loss performance of
Cement-Bonded Particle Board panels for especially noise barrier applications will
be discusses in different construction models. In this research, the
general form of the composite sound barrier panel is a sandwich panel type,
there is one board at the front and one at the back and in between there is an
insulation layer. Thickness of the cement-bonded particle boards and insulation
layer were chosen according to model design. The analysis results show that the
material derivative, density and layer thickness of the insulation layer to be
preferred in the sound barrier composite panel application are among the main
factors directly affecting the Sound Reduction Index (Rw) performance of the
model design.
Birincil Dil | İngilizce |
---|---|
Konular | Mühendislik |
Bölüm | Makaleler |
Yazarlar | |
Yayımlanma Tarihi | 4 Aralık 2018 |
Yayımlandığı Sayı | Yıl 2018Sayı: 4 |