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transparent noise barriers

Artikelnummer:  72011

Transparent noise barriers - Hammerglass

CE-marked noise protection solutions for roads, bridges and railways. Both the light weight and the hard surface of Hammerglass make it a popular choice not only for new projects but also for glass replacement. The use of nanotechnology helps prevent pollutants from exhaust gases, oil and asphalt from sticking to Hammerglass as easily as they do to ordinary glass. The estimated lifespan is more than 40 years. Hammerglass noise protection systems are installed on bridge railings and road dividers, as well as on roads and railways in Sweden, Norway and Finland.

Our solutions are CE marked

Noise barriers at the roadside must be CE-marked according to EN 14388 - regardless of whether they are made of wood, aluminum, glass or plastic. The only exception to the CE marking requirement are protective walls that are built on site from loose wood. If, on the other hand, the elements are manufactured in a factory, the screen must be provided with the CE mark. However, the fact that a screen bears the CE mark does not automatically mean that it is a high quality product or that it meets the requirements that the customer wants to meet. The point of the CE standard is that it should be easier to set requirements because all products have been tested or calculated to the same standard. However, the requirements must be specified in such a way that they make sense in relation to the product supplied. Hammerglass noise barriers are CE-marked in accordance with the applicable standards.

Reduce noise

The effect of a noise protection wall depends on the one hand on the height and thickness of the wall and on the other hand on the speed of the passing vehicles. An effective noise barrier is 4-6 meters high. We can assist you with the acoustic calculation to determine exactly how high a particular wall should be based on the local conditions. To increase the noise-reducing effect, the Hammerfoam absorber can be installed in combination with Hammerglass.

Posts and fastening systems

Hammerglass has brought in portfölj av stolpar och infästningslösningar adjustment efter hur skärmen skall placeras och monteras. Stolparna kan förankras i broräcken, på plintar or på mur - och hållfasthetsberäknas utifrån Höjd och lastpåverkan.

The Hammerglass panels are usually 12 mm thick. Before the panels are cut to size, each section of the noise barrier for the glazing is individually measured, so that it is possible to produce walls that follow the contours of the floor. This means that the noise protection wall does not have to be graded if there are differences in height. The height and design are individually tailored to each project.

If necessary, the panels are attached with wire or through bolts. The panels can also be provided with patterns - usually opal or black - to prevent collisions with birds.

NOISE ABSORBING HAMMER FOAM

Hammerfoam is a complete noise-absorbing system for installation on bridges or walls along roads or railways.

The system is based on a completely assembled Hammerglass floor or bridge solution and is supplemented by a highly absorbent mat that attaches to the Hammerglass plate is clamped. The Hammerfoam is attached to the side facing the railroad track or the roadway. The vandal-proof Hammerglass plate is attached to the outside of the barrier, which is also sunk approx. 20 cm into the ground. Hammerfoam can also be used in combination with other materials - e.g. B. lacquered decorative panels - can be used as noise protection, as in the 400 m long weather protection at Rosengård station (Malmö, Sweden).

Hammerfoam is flame-retardant, UV-resistant and resistant to aging. It is also resistant to chemicals and pressure washers used to remove graffiti. Hammerfoam does not absorb water.

SYSTEM MARK-2

A complete CE marked system with screw assemblies for installation in the floor or on walls, along roads or rails. Can be delivered up to a height of 6 meters.

Hot-dip galvanized square posts with a base plate for floor mounting. Installation can be done on retaining walls or with ground anchors. The Hammerglass panels are clamped between an HFRHS post and a robust clamping profile and secured with wire at the top if necessary. The Hammerglass panels are installed on the inside of the posts (facing the street).

When installing with bolt groups in the ground, it is advisable to install the panels to a depth of approx.Dig 20 cm to prevent the transmission of noise under the barrier. For installation along rail tracks, all shields are provided with earthing rails and each section is earthed separately. A 45-degree curve at the top of the Hammerglass panels reinforces the structure and at the same time contributes to an effective reduction in the low-frequency noise of trains. The Hammerglass panels can also be supplied with printed patterns to prevent bird collisions.

SYSTEM BRIDGE-2

A complete system for mounting on bridge piers along roads or railways. Can be delivered up to a height of 6 meters.

Hot-dip galvanized posts for side mounting on bridge posts. The Hammerglass panels are mounted on the outside of the posts with an external support plate and a clamping profile. If necessary, the panels are secured at the top with wire. The assembly is carried out from the inside of the bridge.

For assembly along rail tracks, all screens are provided with earthing rails and each section is earthed separately. A 45 degree bend at the top of the Hammerglass panels reinforces the structure while also helping to effectively reduce low-frequency noise from trains.

The Hammerglass panels can also be supplied with printed patterns to prevent bird collisions to prevent.

SYSTEM BRIDGE-3

A complete, CE-marked system for mounting on a bridge on the side of the bridge girder along roads or railways. It can be delivered up to a height of 6 meters.

The Hammerglass panels are clamped between an HFRHS post and a robust clamping profile and secured with wire at the top if necessary. Normally the screen is angled outwards in order to maintain the working width of the road barrier.

For installation along rail tracks, all shields are provided with earthing rails and each section is earthed separately. A 45-degree curve at the top of the Hammerglass panels reinforces the structure while also helping to effectively reduce the low-frequency noise of trains.


The Hammerglass panels can also be supplied with patterns printed on them to prevent bird collisions.

TRANSPARENT NOISE BARRIER WALL WITHOUT POSTS

Visibility without noise! The new CE-marked noise protection wall from Hammerglass, which is to be used in the area of ​​the Stockholm bypass, is self-supporting. By bending the Hammerglass panes where a post should actually be, the screen itself becomes so rigid that no steel post is required between the panes of glass.

The barrier is provided with thin strips to prevent bird collisions that cannot be seen from a distance, but are still registered by birds. The result is an almost invisible noise barrier!

SECURITY FITTINGS

Depending on the location and design of the noise barrier, Hammerglass panels must be secured to prevent them from being torn from their fastening, the wall being under tension and birds flying into the panels.

  • Hammerglass panels are secured with wire at the top
  • When installing next to the track, each screen is earthed with a separate earthing rail
  • The curved upper side ensures a high degree of stability and is often used along railway lines where a high pressure force is exerted by trains speeding by.
  • Printed patterns prevent bird collisions
  • Design and assembly


Include us in your considerations as early as the idea phase. Our designers create drawings and suggest functional solutions. We would be happy to provide you with offers for complete projects: made-to-measure hammerglass, posts, fastening systems and assembly.

  • The panels are made to measure after a steel frame or similar has been installed.
  • Ready-made solutions for fastening and assembly
  • 300 times stronger than glass
  • Half as heavy as glass
  • No broken glass
  • Minimal maintenance
  • Unobstructed view of the surroundings

Additional information on the product transparent noise barriers - Hammerglass

Supplier : Hammerglass AB

Hammerglass dimension Noise reduction
TECHNICAL SPECIFICATIONS HAMMERFOAM

Max width in system Ground-2

Max height (at width 2000 mm)

Standard Height Hammerfoam

Thickness Hammerfoam

Thickness Hammerglass panels

2000 mm

6000 mm

1200 mm

50 mm

12 mm (10, 15, 17)

Fire characteristics DIN 4102

Fire characteristics EN 13501-1

Class B1

Class B, S1-S2, d0

Noise reduction class Hammerglass 12 mm

Sound absorption class Hammerfoam

Balanced sound absorption coefficient (? w ) Hammerfoam

B3

A

0.9

Noise reduction Hammerglass 12 mm 34 dBR w
30 DLR
Noise reduction HMG-12 + Hammerfoam-55 37 dBR w
31 DLR
TECHNICAL SPECIFICATIONS GROUND-2

Max width

Max height (at width 2000 mm)

2000 mm

6000 mm

Product dimensions HFRHS

Product dimensions U profile

Product dimensions clamping profile

100 x 100 x 6 mm

44 x 26 x 4 mm

8 mm

Thickness Hammerglass panels 12, 15 and 17 mm

Can be cut trapezoidally

Can be provided with bird deterrent patterns

Yes

Yes

Noise reduction class B3 (12 mm)
Noise reduction 12 mm - 34 dBR w
12 mm - 30 DLR
15 mm - 35 dBR w
17 mm - 36 dBR w
TECHNICAL SPECIFICATIONS BRIDGE-2

Max width

Max height (at widthd 2000 mm)

2000 mm

6000 mm

Product dimensions HFRHS

Product dimensions U profile

Product dimensions clamping profile

100 x 100 x 6 mm

44 x 26 x 4 mm

8 mm

Thickness Hammerglass panels 12, 15 and 17 mm

Can be inclined inwards / outwards

Can be cut trapezoidally

Can be provided with bird deterrent patterns

Yes

Yes

Yes

Noise reduction class B3 (12 mm)
Noise reduction 12 mm - 34 dBR w
12 mm - 30 DLR
15 mm - 35 dBR w
17 mm - 36 dBR w
TECHNICAL SPECIFICATIONS BRIDGE-3

Max width

Max height (at width 2000 mm)

2000 mm

6000 mm

Product dimensions HFRHS

Product dimensions U profile

Product dimensions clamping profile

100 x 100 x 6 mm

44 x 26 x 4 mm

8 mm

Thickness Hammerglass panels 12, 15 and 17 mm

Can be inclined inwards / outwards

Can be cut trapezoidally

Can be provided with bird deterrent patterns

Yes

Yes

Yes

Noise reduction class B3 (12 mm)
Noise reduction 12 mm - 34 dBR w
12 mm - 30 DLR
15 mm - 35 dBR w
17 mm - 36 dBR w
Hammerglass 8 mm 31 dBR w Hammerglass 10 mm 32 dBR w Hammerglass 12 mm 34 dBR w Hammerglass 15 mm 35 dBR w Hammerglass 17 mm 36 dBR w Noise reduction HMG 12 mm + Hammerfoam 55 mm 37 dBR w
31 DLR

CERTIFICATIONS

Hammerglass has gone through a long series of tests to ensure that the strength and performance of the material meets all burglary, ballistic and explosion protection requirements.Hammerglass AB is certified according to ISO 9001: 2015, ISO 14001: 2015 and ISO 45001: 2018 as well as PPAP for the automotive industry.

Burglary protection

Hammerglass is certified according to the European standard EN 356 with the security class P8B, which corresponds to the highest protection class for security grilles and shutters. In order to qualify for this protection class, the material must withstand 70 ax blows. It is worth noting that at the end of the test, after 72 ax blows, the ax still had not punched a hole in the Hammerglass plate.

Shelling

Bullet-resistant glass is certified according to the European standard EN 1063. The various levels of protection are indicated by classes BR1 to BR7, with BR1 being the lowest and BR7 the highest. The most common protection classes are BR4 and BR6. Hammerglass Ballistic Protection was tested by the Ulm Ballistic Office in Germany and certified with protection classes BR4-NS and BR6-NS (No Splinter).

Explosion

A number of tests on Hammerglass panels were carried out in accordance with EN 13124-2 at the SP (Technical Research Institute Sweden) in Borås. Hammerglass panels in different formats were mounted in different steel frames. Then seven explosions were carried out from a distance of 3 and 5 meters respectively. As a result, it was found that 12 mm Hammerglass plates withstand the pressure wave caused by the detonation of 3 kg of TNT from a distance of 3 meters.

CLASS PROTECTION TEST PRODUCT
P2A Smash-and-Grab Dropped metal sphere, 3 m height, x3 SafeCoat 12 Mil
P3A Vandalism / Smash-and-Grab Dropped metal sphere, 6 m height, x3 Hammerglass 4 mm - 4.8 kg / m 2
P4A Vandalism / Smash-and-Grab Dropped metal sphere, 9 m height, x3 Hammerglass 4 mm - 4.8 kg / m 2
P5A Vandalism / Smash-and-Grab Dropped metal sphere, 9 m height, x9 Hammerglass 6 mm - 7.2 kg / m 2
P6B Break-ins 30 ax blows Hammerglass 6 mm - 7.2 kg / m 2
P7B Break-ins 50 ax blows Hammerglass 6 mm - 7.2 kg / m 2
P8B Break-ins 70 ax blows Hammerglass 8 mm - 9.6 kg / m 2
P8B Break-ins 70 ax blows HMG INSULATE 6 mm (HG06-12-4.41)
BR1-NS Bullet resitance Handgun
Rifle .22Long
HMG RABS 12 mm + 4 mm ScreenSaver screen
BR4-NS Bullet resitance Handgun .357 Magnum HMG BR4NS 23 mm - 54 kg / m 2
BR6-NS Bullet resitance Handgun 7.62x51 mm HMG BR6NS 39 mm - 90 kg / m 2
EXR1 Explosion 3 kg TNT at 5 m distance Hammerglass 12 mm - 14.4 kg / m 2
EXR2 Explosion 3 kg TNT at 3 m distance Hammerglass 12 mm - 14.4 kg / m 2

Documents for the product transparent noise barriers - Hammerglass

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