Sound Transmission Loss Measurements Through 190 mm and 140 mm Blocks With Added Drywall and Through Cavity Block Walls

This report presents the results of a series of sound transmission loss measurements carried out under contract for the Ontario Concrete Block Association. The test series was augmented for research purposes by measuring sound transmission losses at different stages in the construction and disassembly of the walls. The report that follows provides an analysis of the information obtained during the complete measurement series.Ce rapport pr\ue9sente les r\ue9sultats d'une s\ue9rie de mesures de perte de transmission sonore r\ue9alis\ue9es contrat pour le compte de l'Ontario Concrete Block Association. Le CNRC a compl\ue9t\ue9 la s\ue9rie d'essais, \ue0 des fins de recherche, en mesurant la perte de transmission sonore \ue0 diff\ue9rent stades de construction et ded\ue9montage des murs. Ce rapport renferme une analyse de l'information obtenue lors de la r\ue9alisation de toute la s\ue9rie de mesures.Peer reviewed: NoNRC publication: Ye