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The Effect of the Plaster Layer on the Sound-Insulating Ability of Enclosing Structures Made of Hollow Concrete Stones

  • Artem SindalovskiyEmail author
  • Nikita Oparov
  • Oleg Krotov
  • Shukhrat Sultanov
  • Igor Pestryakov
Conference paper
  • 33 Downloads
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 70)

Abstract

This work proves experimentally that the sound insulation of an enclosing structure made of the given product increases after plastering. The research substantiates the need for plastering works to achieve the normative value of sound insulation of an enclosing structure made of the product in question. The research is based on the comparison of the results of two experiments. The experiments were carried out according to GOST 27296-2012 in the acoustic reverberation chamber ARK-100 that is located in the Engineering and Construction Institute of St. Petersburg Polytechnic University of Peter the Great. This chamber is designed to determine the airborne noise insulation index of an enclosure structure. During the first experiment, a fragment of a wall made of PK-160 hollow concrete stones was erected in the chamber. Acoustic tests were then carried out. During the second experiment, the fragment of the enclosing structure was covered with a layer of plaster, after which acoustic tests were carried out. The comparison of the results of the first and second experiments showed that after applying the plaster, the index of airborne sound insulation of the enclosing structure’s fragment increased by 11 dB reaching 53 dB, which is 1 dB higher than the standard values for walling in private premises. This research experimentally confirms the statement of the manufacturer of the concrete blocks on the need for plastering work to meet the standards for sound insulation in residential premises for this brand of stones.

Keywords

Sound Sound insulation Concrete stone Concrete Plaster Soundproof Enclosing structures 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Peter the Great St. Petersburg Polytechnic UniversitySt. PetersburgRussia

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