In this paper an innovative concrete and inert mixture is proposed to assemble building partition walls. Mixture is made for no-structural light concrete by aggregating concrete with natural and artificial inerts. Pumice, lapillus and rubber are employed as inerts. A measurement campaign was carried out to evaluate the materials acoustic properties for different samples composition. Experimental tests were realized by an impedance tube: transmission loss was evaluated by a four microphone transfer function method, based on ISO 10534-2. Test results are here reported. Measurements results allows to determine the optimum mixture in term of acoustic properties.
Acoustic tests on original concrete and inert mixture materials
COTANA, Franco;ROSSI, Federico;NICOLINI, ANDREA;
2007
Abstract
In this paper an innovative concrete and inert mixture is proposed to assemble building partition walls. Mixture is made for no-structural light concrete by aggregating concrete with natural and artificial inerts. Pumice, lapillus and rubber are employed as inerts. A measurement campaign was carried out to evaluate the materials acoustic properties for different samples composition. Experimental tests were realized by an impedance tube: transmission loss was evaluated by a four microphone transfer function method, based on ISO 10534-2. Test results are here reported. Measurements results allows to determine the optimum mixture in term of acoustic properties.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
