The influence of finishing materials on the formation and propagation of acoustic resonant waves from external sources of noise in a closed room

Abstract

The analysis and selection of the optimal finishing building materials according to the criterion of influence on the formation and propagation of acoustic resonant waves from the external sources of noise in a closed space have been carried out. The buildings located directly on the red line or at a distance of up to 100m from the roadway get most of the acoustic pressure from motor vehicles. Exceeding the permissible norms is especially often observed during the rushhours and on weekends. Acoustic waves, getting into the room and partially reflected from the enclosing structures create a resonance negatively affecting people in the room. This problem can be partially solved by the correctly-chosen home decoration materials, which have an absorption coefficient at average frequencies greater than 0.2 at geometric frequencies of 500-4000 Hz