SOUND INSULATION OF CONCRETE
Keywords:
mass law,
coincidence effect,
sound insulation grade,
floor impact sound,
floor impact source,
solid borne sound
1980 Volume 18 Issue 5 Pages 1-8
Details
1980 Volume 18 Issue 5 Pages 1-8
To study the sound insulation of concrete in terms of air borne and solid borne sound, we analyzed general characteristics of each as well as the problems to be discussed.
In respect of insulation of air borne sound, the characteristics of sound insulation under the mass law and the reduction of transmission loss by the coincidence effect, are discussed. For application in field works, the effects on gap and technical method of wall construction, are also studied.
In respect of the sound insulation of solid borne sound, the sound reduction characteristics for the impact on floor, the thickness of slab and the level of floor impact sound, and the vibration characteristics on the floor when the slab is impacted, were experimentally studied. For prevention, the surface finishing materials of slab and floating floor construction were discussed together with the effect according to the standard of the Architectural Institute of Japan.
