Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)

The Korean Institute of Building Construction (한국건축시공학회)
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A Study on the Sound Absorption Properties of Foamed Concrete According to Dilution Ratio of Foaming Agent

기포제 희석비율에 따른 기포콘크리트의 흡음특성에 관한 연구

  • 강기웅 (공주대학교 대학원 건축공학과) ;
  • 강철 (공주대학교 대학원 건축공학과) ;
  • 김하석 (공주대학교 대학원 건축공학과) ;
  • 곽은구 (공주대학교 자원재활용신소재 연구센터) ;
  • 권기주 (한국전력공사 전력연구원) ;
  • 김진만 (공주대학교 건축공학과)
  • Published : 2005.05.01
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Abstract

Sound absorbing performance is affected by porosity and continuity of void, therefore it is important to maintain stabilization of foam and to analyze properties of void pore in hardened state. The purpose of this study is to analyze the sound absorption properties and void characteristic of foamed concrete according to dilution ratio of foaming agent. The results of this experiment were as follows. It is determined that an increase in total and continuous void ratio is achieved by increasing of dilution ratio, and a shorter absorbing time was exhibited at a higher continuous void ratio. When the average void size of foamed concrete was below 1.5mm, the tendency of sound absorption coefficient compared with general sound absorber was appeared similarly.

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