EVALUATING THE EFFICIENCY OF RECYCLING COMPOSITE PANELS MADE FROM ABS TO REDUCE THE TRAFFIC NOISE

Abstract

Aim of the study is to determine the capacity of sound insulation composite panels made from recyclable waste from acrylonitrile butadiene styrene (ABS). Sound insulation index was calculated as the difference between the sound pressure level measured at the source and the sound pressure level measured at the point of reception. Tests were conducted in the open, with a fixed omnidirectional sound source, acoustic panels was found that the efficiency depends on a number of geometrical and structural parameters such as: distance between source and noise barrier made of composite material based on ABS (DS1 = 2 m, DS2 = 4 m), noise emitted by the source (LAeq1 = 100 dB (a), LAeq2 = 103 dB (a)) and the distance between the barrier and the receivers are in a position collinear with the source (DR1 = 2m = 4m DR2, DR3 = 6m). It was found both materials of sound barriers and distance between source and receptors influence the efficiency of noise reduction.