Abstract
The article presents the experimental studies of sound insulation of a single-layer barrier made of gypsum wall boards with a thin-layer coating. The coating consists of a viscous base and glass airless microgranules. The coating increases the efficiency of reducing air noise. The material is applied as a normal paint by spraying on the surface. The research results have been obtained in an acoustic reverberation chamber designed to study the partition walls effectiveness.
Highlights
Sound insulation is one of the main requirements for human comfort today
The sound wave passing through the layer of such material is partially dispersed in it due to airless granules, and the energy is absorbed by the elastic binding component, which leads to a decrease in intensity and, a decrease in the noise level behind the partition wall [7]
The goal of study was to determine the influence of thin-layer coating used as thermal insulation for residential accommodations on the sound insulation of partition walls
Summary
Production environments, and equipment that create higher sound pressure lead to the need of development more efficient and cost-effective ways to produce sound-absorbing materials [1]. It is extremely important to reduce the weight of structures for aircraft design. Providing the latter often leads to increased noise and vibration levels. The sound wave passing through the layer of such material is partially dispersed in it due to airless granules, and the energy is absorbed by the elastic binding component, which leads to a decrease in intensity and, a decrease in the noise level behind the partition wall [7]. The effectiveness of such materials is poorly predictable and there is a need for full-scale tests in reverberation-type chambers [5]
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