COMBISoundBlok® combined noise and safety barrier

Product name

COMBISoundBlok®

Suitability

Roads
Transport network

Finish material

Concrete

Absorbent / reflective

Sound absorbent
Sound reflective

Support services

Design
Installation

Dimensions (w x h)

DL? 44dB, Dla 20dB

Sound absorption (dB)

1-4m (w) x 2-4m (h); bespoke heights available

Vehicle restraint systems and noise barrier walls normally are considered separately. Therefore, more space is required and the efficiency of noise reduction is reduced. Gramm Barriers combines those two systems to one CE-certified solution, the COMBISoundBlok® series.

The COMBISoundBlok® integrated noise barrier is designed as a free-standing, T-shaped wall element. The profiled safety barrier sits on its traffic-facing footplate. Both system parts act as independent chains linked to each other via the proven GRAMM couplings.

It is not only the barrier the Gramm develops; it is the holistic solution. Saving money and time is on the task list – right after saving lives.

Specification

The restraint system respectively noise barrier COMBISoundBlok® acts as safeguarding for the verge on motorways and dual carriageways. Due to the noise absorbing material laminated to the surface of the wall, it additionally works as a high-grade sound insula ion system.

Main features

High containment level (H2)
Extremely small system width of only 105cm tested passenger protection (ASI B)
Small working width (W5)
Combination of noise barrier and restraint system variable height of wall 250-350cm
Tested for H2 and H4b
Free-standing, no need for expensive foundations
Space-saving installation due to narrow working width
Increased effectiveness by positioning close to the noise source
Fast and easy to install

The DB LSW series combines tested safety and absorption in the most versatile way. The COMBISoundBlok® is designed for the roadside H2 | W4 | ASI B.

For GRAMM, CE-certification is obligatory, no matter if it is concerning EN 1317 safety or EN 14388 acoustics.