sound-absorbing barriers Italy

...It concerns the construction, installation, maintenance, and acoustic verification of noise containment works originating from road or railway sources, such as barriers made of metal, concrete, wood, glass, or transparent plastic, bio-walls, cellular or alveolar walls, as well as sound-absorbing coatings for earth retaining walls or tunnel walls. Code: OS 34...

...Certified eco-compatible bio-malt, fibrous with a special composition of fibers specifically designed, based on natural raw materials such as granulated cork and natural hydraulic lime NHL 3.5 in accordance with EN 459-1 for thermal insulating, sound-absorbing, and dehumidifying underlayment, suitable for both indoor and outdoor applications, including the interposition of mats for sound...

... newly constructed buildings as stipulated by the DPCM of 5/12/1997. Finally, of fundamental importance for both the initiation of the design and the verification of the effectiveness of the implemented interventions is the measurement instrumentation, which includes high-precision sound level meters, dodecahedral and directional sources, noise generators, and impact noise machines. All the...