The silent gabion

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The silent gabion

Soundblock is the patented soundproof

gabion from Betafence for large infrastructure projects.

Thanks to the innovative, absorbing concept of the Soundblock less noise

is reflected and less sound permeates through the gabion wall. Like all

gabions from Betafence, Soundblock is also extremely versatile, sturdy and

durable. Furthermore filled gabions ornament any landscape through their

natural aesthetic.

And now please be quiet, we are about to begin...

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The wall of sound

The silent gabion

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The wall of soundSoundblock can be installed exceptionally quickly and simply through its "fold open and fill" principle. The technique allows us to build creatively, quickly and most importantly cost effectively. The interior compartment, which is not visible from outside, can also be filled at a minimal cost with on site available material or with cheap recycled granular fill such as rubble or crushed brick. 5

The silent gabion

The sound of silence

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The sound of silenceThe outerwalls of the Soundblock can be filled with all types of material, from decorative stones to glass and even leaves or twigs. Climbing plants may also be grown over the gabions. The Soundblock elements always form an extremely strong construction thanks to the welded framework that is optimally connected with spirals.A durable and sustainable solution as a silent partner of nature. 7

Soundblock is the ideal infrastructure solution and fits perfectly within the Betafence gabion range. The system is delivered flat-packed and can be assembled quickly and simply on site. It is extremely efficient and offers a high return in comparison to alternative solutions like concrete walls, ...Up to 6 metres high constructions are possible using a crane. In the same way as the other gabions from Betafence, Soundblock is made from welded wire panels, protected with Zincalu® Ultra* coating for an extra long life. The granular fill central compartment in combi-nation with the outer stonefilled compartments provide the ideal soundproofing action.

*Zincalu® Ultra comprises 95% zinc and 5% aluminium. The coating has an average weight of 350 g/m² which

guarantees a 3 time longer life than ordinary zinc coating. All the accessories have the same quality to guarantee a

maximum life. In compliance with BS EN 10244-2.

1 Preassembledsoundblock is preassembled and available in different mesh sizes.

2 easy insTallaTioninstallation is realised in one easy movement on site.

endless constructions are possible in units from 2 to 10 metres!

3 soundblock core fillerfiller bags are used in the central section combating washing away and erosion of the rubble

granulate in the gabion. The filler provides the soundproofing soundblock-effect (minimal transmission).

4 fill of The ouTer secTionsThe outside of the soundblock can be filled with all types of material (from stone to glass

and even twigs). climbing plants may also even be allowed to grow over the side. The choice of material helps to determine the degree of sound absorption.

sounds like soundblock®

The silent gabion

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Betafence Soundblock stands out in effectiveness as a soundproofing solution.The wall forms a sound barrier by absorbing the noise through its insulation effect. The central compartment is used as an active acoustic segment. As a result the transmission of the noise to the other side of the wall is limited.Betafence Soundblock was developed in partnership with Sonorcontrol, a leading and independent scientific laboratory specialised in sound engineering.

silencein stereo

The silent gabion

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sTandardizaTion for soundProofing screens

DLa absorption DLr transmission

basic sTandard Minimum A2 to A3 Minimum B2

concrete screen A1 B3

metal cartridges A2 B2

wooden slat screen A2 B1

Betafence Soundblock A2 B3

Betafence Soundblock extra* A3 B3

DLa: sound absorption coefficientDL

r: sound insulation coefficient

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*with extra sound absorption material

a ouTer segmenTb exTra sound absorPTion maTerial

c cenTral segmenT d ouTer segmenT

To guarantee even better acoustic performance, extra sound absorption material may be installed. soundblock thereby complies with the highest soundproofing requirements.

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a good sound screen prevents sound waves from directly moving from the source to the receiver (path a). The transmission resistance (dlr) of the screen is defined here.

however, undesired reflections (path b) may severely reduce the soundproofing effect of the screen. for that reason a good sound absorption (dla) is required on the sound side of the screen.

The sound infiltrates the screen and loses its force through absorption. reflections are greatly reduced as a result.

because of the long distance (path c) of the sound waves between the source and the top of the soundblock, it has an active acoustic working by bending the sound. This is also called diffraction.

absorption

Soundblock

transmission

a b c d

soundblock optimally combines transmission resistance and absorption

extra absorbing material for even better acoustic performance

decreased reflection

a

b

cc

The silent gabion

are you looking for a soundproofing solution for your infrastructure project? Or would you like more information about the innovative gabions from Betafence?Then do not hesitate to contact us:info.benelux@betafence.com or +32 56 73 16 15 (BE) or 0800 022 03 59 (NL) you will always be given advice for a customised solution to your project.

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Betafence is the world leader in physical perimeter fencing systems, access control and detection systems.All Betafence companies and product names are trademarks owned by Betafence Holding. Products and assortment are subject to change without prior notice. 11/2010