Acoustic

Several equipment and instrumentation for the execution of acoustic and mechanical tests on anti-noise systems in order to obtain the Conformity Certification according to EN 14338.

Tests on noise barriers are aimed at determining:

• the sound diffraction in situ (CEN/TS 1793-4);
• Sound reflection and sound insulation in situ (EN 1793-5, EN 1793-6);
• Mechanical performance and stability requirements (EN1794-1);
• general safety and environmental requirements (EN 1794-2);

In addition to the acoustic analysis of the sound absorption or sound insulation performance of acoustic barriers, AISICO also performs physical and chemical laboratory tests to determine the strength of the materials of construction of such devices.

Adrienne tests

Sound reflection under direct sound field conditions and sound insulation.

A test that measures the inherent characteristics of sound reflection and airborne sound insulation values of noise reduction devices designed for roads under non-reverberant conditions. It can be applied both to qualify products to be installed along roadways and to verify compliance of installed noise reduction devices with respect to design specifications.

AISICO holds EN17025 accreditation for performing acoustic tests according to EN1793 parts 5 and 6.

Acoustic testing in reverberation chamber

Sound Absorption

A test that allows the measurement of the intrinsic sound absorption performance of devices for the reduction of traffic noise under diffuse sound field conditions.

Acoustic Insulation

A test that measures the airborne sound insulation performance of road traffic noise reduction devices under reverberant conditions and that includes evaluation of the intrinsic performance of barriers that may be mounted within the installation, as outlined in EN ISO 10140-2 and EN ISO 10140-4.