The proposed materials are intended to be light structures, recyclable or degradable and with high noise reduction efficiency, being proper in buildings structures, noise barrier structures and automotive components. Key words: acoustic, composite, noise control, absorption, Kundt’s tube, noise barriers

1. Name :-Radha A. Bhavsar
Class :-B. Arch
Year :-3rd year
Sub:- Bs. 2nd sem

2. Pravara Rural Education Society’s
Pravara Rural College of Architecture, Loni.
Certificate
This is to certify that the report entitled
To prof. P.N.Bankar sir
“Building Services – Barriers & Composites ”
Has been successfully carried out & submitted by
Bhavsar Radha Aniket
Sign Stamp

3. Barrier is simply abstracters or some object that stop
noise or reduce noise effect that unused or un-needed.
In Acoustic use this barrier help to block the sound
between two area or between two material

4. When absorbers cannot reduce all the noise, barriers are needed to block
the sound.
Flexible mass loaded vinyl (MVL) prevents sound from traveling from one
area to another.
This layer is typically combined with absorbers and decoupling materials to
create a composite material that can absorb and block noise all in one.
•Custom barrier weights are available for each application.
•Can be combined with wear surfaces to create floor mats that reduce
sound.
•Can be combined with sound absorber materials to create acoustical
composites that absorb and block sound all in one

5. Concrete
Brick
Metal
Wood
Transparent panel
Plastic
Recycle Rubber
 Composites

6. The proposed materials are intended to be light structures,
recyclable or degradable and with high noise reduction
efficiency, being proper in buildings structures, noise barrier
structures and automotive components.
Key words: acoustic, composite, noise control, absorption,
Kundt’s tube, noise barriers
The use of composite
materials based on
textiles residues and
wood chips or flacks for
noise reduction have two
major advantages,
namely low production
costs and small
specific gravity

7. Following all Sound walls are
the most effective method of
mitigating noise from major
sources other than sound
cessation or volume control at
the source.
Can provide absorptive or
reflective qualities on both sides of the wall system
Provide a lower life-cycle cost and high durability compared
with other materials

8. A lightweight, porous, open cell, acoustic
melamine foam material designed for
maximum sound Barrier create where a
Class 1 Fire rating is a must.
A rubber based floor
underlayment made from
recycled rubber tires. Used
under laminate or
engineered hardwood
flooring.
Melamine Wedges :-

9. An insulation composite material featuring a flexible
reinforced foil-faced faced loaded vinyl noise barrier bonded
to a 1” thick quilted fiberglass sound absorber. It is typically
used to wrap noisy pipes &
ducts to block the noise that
transmits through the walls of
the pipe/duct as air or other
contents move through it as
well as to increase the sound
absorption in the cavity.

10. Composite materials are
manufactured from
combinations of various
materials from open and closed
celled foams to quilted
fiberglass and barrier. These
products are used to block and
absorb sound for machine
enclosures as well as blocking
airborne sound and impact
noise. Some of these products
include Composite Foams,
Strati Quilt Blankets and Floor
Underlayment.

11. high density thin, weighted barrier,
constructed of non reinforced high
temperature fused vinyl with no lead
filters. Apply to block transmission of
sound through walls, floors, and
ceilings. Also effective as a pipe and
duct wrap to damper vibrations and
reduce noise.

12. Ideal for noise blocking and can be
used to soundproof any wall, ceiling
or any opening excellent for use
inside a machine enclosure, or any
industrial equipment.

13. BQ-1 is used when the noise source is located on only one side
of the acoustical material.
The sound waves will be initially absorbed by the fibreglass and
then blocked by the sound barrier backing.
Any reflected sound will once again enter the fibreglass and be
further dissipated.

14. BQ-2 may function as a divider when multiple noise sources
are located on both sides of the acoustical material, or when
a greater amount
of noise
reduction is
required.
Sound waves
can be
simultaneously
absorbed on both sides and
then subsequently blocked by
the mutual barrier septum.
The reflected sound will be
further dissipated.

15. The BBC model Barrier Backed Composite is a quilted
fiberglass absorber bonded to a reinforced loaded vinyl
noise barrier.
A variety of facings are available including our standard
industrial grade vinyl facing, an economy scrim facing and a
silicone facing for high temperature or outdoor applications.
Curtain panels are typically
constructed with grommets
across the top and mating
Hook and loop closures on
The vertical edges.

16. Barrier Septum Composites (BSC), consist of an interior or
exterior vinyl-coated-fiberglass-cloth facing on a non-reinforced
loaded vinyl noise barrier sandwiched between two layers of 1”
or 2” fiberglass.
Typical applications include use as a divider wall when
separating two noisy areas that require
absorption, to line the interior
perimeter and/or ceiling of a
building, i.e. compressor
stations, or anywhere an
absorber/barrier/absorber
is needed.

17. The sound waves will be initially absorbed by the fibreglass
and then blocked by the sound barrier backing.
Any reflected sound will once again enter the fibreglass and be
further dissipated
May function as a divider when multiple noise sources are
located on both sides of the acoustical material, or when a
greater amount of noise reduction is required.
Sound waves can be simultaneously absorbed on both sides
and then subsequently blocked by the mutual barrier septum.
Absorbers exhibit some meaningful noise barrier
characteristics, they generally do not provide sufficient
transmission loss performance to effectively or efficiently solve
the more extreme applications.