CONSTRUCTION MATERIALS FOR REDUCING NOISE BETWEEN STORIES OF BUILDING

摘要

A construction material for reducing a heavy-weight impact sound of an ondol floor of an apartment house is provided to guarantee a quiet and pleasant living environment by preventing transmission of noise and vibration from floor to floor. A construction material for reducing a heavy-weight impact sound of an ondol floor of an apartment house is constructed on a slab of a multistory building such as an apartment house so as to reduce noise and vibration generated from the floor. The construction material comprises a first hollow buffering material(10), an insulating foamed synthetic resin(20), a second hollow buffering material(30), and an asphalt sheet(40). The first hollow buffering material is disposed at an uppermost floor to reflect and distribute an impact energy being transmitted. The insulating foamed synthetic resin is disposed under the first hollow buffering material to store and insulate the impact energy. The second hollow buffering material is made of a soft material and disposed under the insulating foamed synthetic resin to reflect and distribute a second impact energy. The asphalt sheet disposed under the second hollow buffering material absorbs and damps the impact energy, thereby removing remaining sound and improves comfort of walking.