A.C.C. WARNOCK

ABSTRACT

This paper summarizes information on sound transmission through concrete blocks, unfinished or with gypsum board attached in various ways. The importance of block
porosity and the depth of the cavity behind added drywall is illustrated. Methods for dealing with the detrimental resonance involving the blocks, the gypsum board and the trapped air are discussed. The importance of low frequency sound is emphasized and some guidance for optimal acoustical design of concrete block walls is given.

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