Autors: Ivanova N.B., Pleshkova, S. G.
Title: Integrated Measurement of Sound Insulation and Absorption in Sustainable Materials
Keywords: building acoustics, comparative measurements, small size acoustic chamber, sound absorption, Sound insulation

Abstract: This study presents an integrated experimental approach for the comparative evaluation of airborne sound insulation and sound absorption properties of sustainable building materials. A combined measurement method is proposed, employing a small-size acoustic chamber for sound insulation assessment alongside a receiving room with acoustic conditions approximating those of a reverberation chamber for sound absorption measurements. A key feature of the methodology is the integrated use of the measured reverberation time of the receiving room in determining both acoustic indicators. Frequency-dependent measurements were conducted on hemp wool as a representative eco-friendly material. The results demonstrate the feasibility of the proposed approach as a practical framework for comparative acoustic characterization, early-stage material development, and production-stage optimization. The integrated method enables efficient preliminary laboratory investigations while providing complementary information about the acoustic behavior of sustainable materials.

References

  1. EN ISO 354, "Acoustics-Measurement of sound absorption in a reverberation room", International Organization for Standardization
  2. S. Djambova, Ts. Nedkov, I. Hristev, Ability Test of Laboratory Soundproofed Chamber for Evaluation of Building Elements Noise Insulation, Annual of the University of Architecture, Civil Engineering and Geodesy, Vol. 49, Issue 4, pp. 141-148, Sofia, 2016, ISSN 2534-9759-in Bulgarian
  3. S.T. Djambova, N.B. Ivanova, and S.G. Pleshkova-Bekiarska, "Comparative measurements of sound insulation of materials placed in small size acoustic chamber," 57th International Scientific Conference on Information, Communication and Energy Systems and Technologies, ICEST 2022, Ohrid, North Macedonia.
  4. ISO 3382-2:2008, "Acoustics-Measurement of room acoustic parameters-Part 2: Reverberation time in ordinary rooms"
  5. EN ISO 10140:2021-Acoustics-Laboratory measurement of sound insulation of building element

Issue

2026 61st International Scientific Conference on Information, Communication and Energy Systems and Technologies, ICEST 2026 - Proceedings of Papers, pp. 435-439, 2026, Albania, https://doi.org/10.1109/ICEST71230.2026.11623649

Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Scopus