Development of laboratory sound insulation measurement methods of cross-laminated timber elements

Julie Bech Liengaard, Melanie F. Gotfredsen, Rasmus Stahlfest Holck Skov, Jonas Brunskog

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

16 Downloads (Orbit)

Abstract

Cross-laminated timber (CLT) is a construction material that has gained significant popularity since the start of 2000s in numerous countries worldwide. Wooden-based structures have traditionally given rise to acoustic challenges in buildings. Since CLT is not a traditional wooden laboratory tests on sound insulation of CLT-elements with various build-ups and configurations are in high demand. However, physical properties of the CLT-element lead to ambiguity in the ISO-standards regarding its classification as an either lightweight or heavyweight construction material. In consequence, practical aspects like the mounting condition vary based on the choices made by the test facilitator and the acoustic laboratory, which gives rise to uncertainty around the trustwhorthyness of the results. This paper presents the findings from a project focused on the test procedure and on the test arrangement for conducting laboratory sound insulation measurements on CLT floor elements. A variation of mounting conditions have been investigated and the impact they have on the sound insulation properties, structural reverberation time and the loss factor of the floor.
Original languageEnglish
Title of host publicationProceedings of DAS|DAGA 2025
PublisherDeutsche Gesellschaft für Akustik e.V.
Publication date2025
Pages348-51
ISBN (Print)978-3-939296-23-2
DOIs
Publication statusPublished - 2025
EventDAS|DAGA 2025, 51st Annual Meeting on Acoustics - Bella Center, København, Denmark
Duration: 17 Mar 202520 Mar 2025
https://www.das-daga2025.eu

Conference

ConferenceDAS|DAGA 2025, 51st Annual Meeting on Acoustics
LocationBella Center
Country/TerritoryDenmark
CityKøbenhavn
Period17/03/202520/03/2025
Internet address

Fingerprint

Dive into the research topics of 'Development of laboratory sound insulation measurement methods of cross-laminated timber elements'. Together they form a unique fingerprint.

Cite this