공동주택 바닥충격음 완충재 특성에 따른 중량충격음 저감레벨 평가 (Effects of Material Property of Floor Impact Sound Isolator on Heavy-weighted Floor Impact Sound Level in the Apartment Building)

서지정보

· 발행기관 : 한국생활환경학회
· 수록지 정보 : 한국생활환경학회지 / 21권 / 1호 / 19 ~ 25페이지
· 저자명 : 정근형, 류종관, 이종인, 김용식

초록

This study investigated the effects of material properties of floor impact sound isolators on heavy-weightedfloor impact sound level. The materials of sound isolators were EPS (Expanded Poly-Styrene) and EVA (EthyleneVinyl Acetate), and their thickness were 20 and 30 mm. Floor impact sounds excited by bang-machine and rubberball were measured in both conditions with and without floor finishing including the sound isolators on the structuralslab. Reduced heavy-weighted floor impact sound levels by sound isolators were then analyzed. Result showed thatembossed shape and composite materials such as PE (Poly-Ethylene) mesh and absorbent cloth of sound isolator wereeffective for reduced floor impact sound level for EPS and EVA, respectively. Dynamic stiffness among properties ofthe sound isolator was highly correlated with the reduced heavy-weighted floor impact sound level in the 63 Hz octaveband. It was found that the reduced floor impact sound level by rubber ball was smaller in the 63 octave band, butwas lager in the bands over 125 Hz and single number quantity than that by bang-machine

영어초록

This study investigated the effects of material properties of floor impact sound isolators on heavy-weightedfloor impact sound level. The materials of sound isolators were EPS (Expanded Poly-Styrene) and EVA (EthyleneVinyl Acetate), and their thickness were 20 and 30 mm. Floor impact sounds excited by bang-machine and rubberball were measured in both conditions with and without floor finishing including the sound isolators on the structuralslab. Reduced heavy-weighted floor impact sound levels by sound isolators were then analyzed. Result showed thatembossed shape and composite materials such as PE (Poly-Ethylene) mesh and absorbent cloth of sound isolator wereeffective for reduced floor impact sound level for EPS and EVA, respectively. Dynamic stiffness among properties ofthe sound isolator was highly correlated with the reduced heavy-weighted floor impact sound level in the 63 Hz octaveband. It was found that the reduced floor impact sound level by rubber ball was smaller in the 63 octave band, butwas lager in the bands over 125 Hz and single number quantity than that by bang-machine

참고자료

· 없음