Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Sound Absorbing Characteristics of Porous Concrete according to Mixing Factor

배합요인에 따른 포러스 콘크리트의 흡음특성

  • 이준 (충남대학교 토목공학과) ;
  • 박승범 (충남대학교 토목공학과) ;
  • 권혁준 (충남대학교 토목공학과) ;
  • 김경훈 (충남대학교 토목공학과) ;
  • 장영일 (충남대학교 토목공학과) ;
  • 김형석 (충남대학교 토목공학과)
  • Published : 2003.11.01
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Abstract

The results of an experiment on the sound absorption of the porous concrete and its influence on the compressive strength are reported in this paper. Two different sizes of coarse aggregate of 5~13, 13~20mm, and the design void ratio of 20, 25 and 30 percent for a given size of aggregate were used. In the compressive strength, an aggregate of the size of 5~13mm is much higher strength than that of the 13~20mm, In the sound absorption experiment, the size of aggregate of 5~l0mm is much higher sound absorption than that of the 13~20mm. The sound absorption ratio was increased as the design void ratio. As a result, Porous concrete sufficiently have the performance of sound absorption.

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