Italian buildings are typically realized in heavy masonry walls both for internal partitions and for façades. The most common construction technology for internal partitions is the brick masonry realized both with single layer and with double layer walls. The sound reduction index of these partitions, made in the past century, was hardly greater than 50 decibels. As a consequence of these poor acoustic performances and after the publication of the first Italian law on the acoustic performances of buildings, in the first decade of the new century there was a great evolution in sound insulation of internal walls. In particular, in recent years lightweight concrete block walls have had an increased diffusion as a consequence of their good acoustic performances and their simple building procedures. The research carried out by the Universities of Ferrara and Firenze, supported by the Italian national association of expanded clay, concerns the sound reduction index measurements of about one hundred different lightweight concrete block walls, realized in a great number of building yards. The statistical analysis of measurement results shows the stability of the acoustic performance of this technology and points out the more common realization errors and their typical influence on the acoustic performance of internal walls.

Statistical analysis of Sound Reduction Index measurements on typical Italian lightweight concrete block walls

FAUSTI, Patrizio
2012

Abstract

Italian buildings are typically realized in heavy masonry walls both for internal partitions and for façades. The most common construction technology for internal partitions is the brick masonry realized both with single layer and with double layer walls. The sound reduction index of these partitions, made in the past century, was hardly greater than 50 decibels. As a consequence of these poor acoustic performances and after the publication of the first Italian law on the acoustic performances of buildings, in the first decade of the new century there was a great evolution in sound insulation of internal walls. In particular, in recent years lightweight concrete block walls have had an increased diffusion as a consequence of their good acoustic performances and their simple building procedures. The research carried out by the Universities of Ferrara and Firenze, supported by the Italian national association of expanded clay, concerns the sound reduction index measurements of about one hundred different lightweight concrete block walls, realized in a great number of building yards. The statistical analysis of measurement results shows the stability of the acoustic performance of this technology and points out the more common realization errors and their typical influence on the acoustic performance of internal walls.
2012
9788001050132
Sound Reduction Index; Expanded clay blocks; Statistical methods
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2281021
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
social impact