Airborne Sound Insulation of Sandwich Partition Panels and Masonry Constructions for Noise Control

The paper reports the airborne sound insulation characteristics of sandwich partition panels and masonry constructions tested in Reverberation chambers for their applications as doors, noise barriers or enclosures for traffic and machinery noise control. The study presents the rarely reported sound insulation characteristics of various types of sandwich constructions available commercially. The measurement uncertainty in sound transmission loss determination using Reverberation Chamber method is reported. The sound insulation of various dry wall systems utilizing vapor barriers, GI blocks, Tecsound sheets, Asbestos and non-Asbestos sheets, Stainless, Aluminum, Plastic and transparent sheets and various damping materials and double glazing's is reported in the study that can be helpful in the development of optimal sandwich constructions of enhanced acoustic performance accomplishing the desired noise level reductions. The study suggests that sandwich constructions utilizing the various Gypsum and Tecsound sheets can provide enhanced sound insulation characteristics.