Time-depending performance of resilient layers under floating floors. (15th January 2016)

• Record Type: Journal Article
• Authors: Caniato, M.; Bettarello, F.; Marsich, L.; Ferluga, A.; Sbaizero, O.; Schmid, C.
• Is Part Of: Construction & building materials. Volume 102:Part 1(2016)
• Page Start: 226
• Page End: 232
• Publication Date: 2016-01-15
• Subjects: Resilient layer -- Compressive test -- Compressive creep test -- Dynamic stiffness -- Impact sound pressure reduction; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2015.10.176
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: Three mechanical tests were performed for 20 resilient layers. Mutual correlations among these three parameters were investigated. No general rule can be defined between different parameters. The effect of service time was evaluated and a preliminary relationship have been proposed. Density seems not to influence final performance, on the contrary the contact shape does. Abstract: In the floating floor system the performance of resilient layers, in terms of impact sound pressure level reduction, is of paramount importance. In the present study in order to evaluate the time-depending performances, a comprehensive characterization of twenty different layers was carried out, evaluating dynamic stiffness, compressibility and compressive creep. The aim of this work was to find out a possible correlation among these parameters and the effect of service time on mechanical and acoustical properties. Results indicated that a general rule couldn't be defined. Furthermore, the presence of a coating, as well as different density and/or contact shape, has proved to influence the final acoustical performances.