Aluminum foam Sound Barrier for highway

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Product Description

 100% Recycling Soundproofing Closed Cell Aluminum Foam Panel



Specification of high speed railway (expressway) soundbarrier



Structure and construction method

High speed railway sound barrier


Aluminum perforated plate +Aluminum Foam + Sound  insulation panel

(system of high speed rail sound barrier)

Installation method ofsound barriers on highway and railway.

1. Mark the keel beaminstallation position on the high speed railway (expressway)

2. Install and fix the keelbeam

3. The distance between two beams is 500-600m

4. Install Aluminum foamsound-absorbing panel

5. Inset Aluminum alloy frame in order to fix the Aluminumfoam panel

6. Fix it to the beam with bolts

7. In order to prevent the bolts from loosening,install sturdy nuts.


1. Materials used for the high speedrailway (expressway) must be stainless steel or aluminum.

2. The specification of Aluminum foam sound-absorbing panelis adjustable as the design of high speed railway (expressway)

3. Color of Aluminum foam sound-absorbing panel can becustomized as required.

What is AluminumFoam?

Aluminum foam is a new concept metalmaterial which is foamed in sponge shape after melting aluminum ingot with various chemical ingredients and has many bubble layers inner structure.

Porous material is much lighterthan original one, which is the characteristic of porous. And, it improves the ability of  energy absorption and reduces the abilityof thermal and electrical conductivities than original metal materials. Inaddition, porous material has wide applications as well as excellent ability ofsound absorption and permeability of liquid, air, etc.

Aluminumfoam, a metal itself, can be applied to aerospace aviation required the  thermostability over 200℃. It is a 100%  recyclabl ecofriendly material and absolutely will not produceharmful substances no matter in the process of producing,  using or abandoning.

Main properties of aluminum foam


Density is 0.2~0.4g/cm3 (Aluminium1/10,Iron1/30, and Wood 1/4)


Porous structure has a good soundabsorption.

Aluminum foam sound-absorbing materialcan be used in the inner decoration of buildings (walls, ceiling and floor),railway, highway, factories, mechanical equipment and any other fields.

Suitable for noisy place.


100%non-flammability and no toxic gas released when burning.

Non-combustibility TEST verified to be qualified. <KIMM; IMO A.799 (19)>

I grade Non-flammability TEST ofaluminum foam surface verified to be qualified. <KICT; KS F2271>


Porous structure can effectively absorbenergy.

Have a great effect on energyabsorption after a high impact.

Firstly acquired the national SB5class (Guard rail shock-absorber)

Electromagnetic wave shielding ability

Aluminum foam has a function ofabsorbing electromagnetic wave

Widely used in military (stealth materials),TV station, hospital and any other electromagnetic shielding places.


100% recyclable Aluminum foam is nonpoisonous, odorless andharmless, no toxic gas released when burning.

Aluminum foam can be produced by recycled aluminum andits scraps.



Aluminum foam composed panel

Aluminum  honeycomb plate





Aluminum plate(GRP plate)

aluminum foam

aluminum plate(GRP plate)

Aluminum plate(GRP plate)

aluminum honeycomb

aluminum plate(GRP plate)

Waterproof performance

long time  immersion and corrosion in water)

Excellent(oxidized pure metal)

Excellent but easy to rust

Fireproof performance


(Non-flammability of pure metal)

General (Glue layer in the middle is not resistant to  high temperature)

ComparisonAluminum Foam with Other Sound-absorbing Materials


Aluminum Foam


Glass Fiber

Urethane Form





SiO2, mineral

high molecular Material

Acoustic absorption(NRC Standar d)

over 0.70

over 0.70

over 0.75

over 0.65

Long-term sound absorption


Property is decreased

Property is decreased

Property is decreased


100% recyclable Eco-friendly

No recyclable, flammable, produce  little dust

No recyclable, no flammable, arsenic acid cause gas  pollution

No recyclable and flammable

Materials handling & Constructability

Easy handling, using and working under no protective  equipment

No damage when handling and using, easy to work under no  protective equipment

Low stability. Easy to cause  respiratory disease and skin ailments when touching

No damage when handling and using, easy to work under no  protective equipment

Human harmfulness




Poisonous gas (CO, Cyan gas) release when burning

Waterproofness & Sound  absorption

Waterproofness is  excellent , stable form, permanent sound absorption

Waterproofness and  adhesion is good, stable form

Absorb moisture and poor drainage cause lower acoustic  absorption

Absorb moisture and poor drainage cause lower acoustic  absorption


grade Non-flammability
 -under 780℃


 -under 350℃

Easy flammable
 -under 100℃

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Q:Do you know what the sound barrier is?
Divided into traffic noise barriers, equipment noise attenuation noise barriers, industrial plant noise barriers, roads and highways on the use of various types of sound barrier the most places.
Q:How long is the high-iron away from the community to install the sound barrier 21 layer to hear the noise?
This is also the main sound barrier sound effects how to look like, because there are many kinds of sound barrier quality, noise effects are different.
Q:Outside the park are installed sound barrier, and is necessary? Into the park but also around a way?
If there are singing in the park to dance square dance and some of the big sound activities. Sound insulation Noise reduction Installation of sound barriers is very necessary.
Q:Classification of sound insulation barriers
According to the material points, there are: all-metal sound barrier, all glass steel insulation barrier, durability board (PC) full transparent barrier, high-strength cement insulation barrier, cement sawdust insulation barrier; According to the contours of the points, there are: upright sound barrier, upright small arc sound barrier, fully enclosed sound barrier; According to the combination of points, there are: all transparent sound barrier, all opaque sound barrier, smoke insulation board and transparent material combination of sound insulation barrier; According to the panel form points, there are: wave board, louver, flat perforated insulation barrier. Four types of barrier barriers are, resistive sound barrier, ordinary transparent sound barrier, microplate transparent sound barrier and composite sound barrier.
Q:What is the sound barrier mold used in general?
Sound barrier mold applications in high-speed, bridges, high-speed rail has played a good Runda anti-noise function.
Q:What does the sound barrier work?
Used to cut off the sound; reduce the noise in the area
Q:The difference between the railing mask and the sound barrier mask
The shutter mold plays a beautifying role in covering the steel in the bridge.
Q:Sound barrier workers installation fee
The installation of the sound barrier can not be said specifically in the road, roads, factories and other flat roadbed installed sound barrier, if you do not calculate the freight, billing, etc., manufacturers or companies to provide installation, then about 25-40 yuan / square meter; Bridges and other high operating installation, probably need 30-50 yuan / square meter.
Q:How about goods? Sound barrier, with the endurance board, sun board how?
Plate and plate is directly different! Thickness and material are determined sheet prices, I checked the next, they are part of the direct! The price can be assured
Q:What is the composition of the muffler barrier, how much is the price of one square meter?
Hello, what are the 5,000 yuan? Can you explain, thank you

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