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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국폐기물자원순환학회 한국폐기물자원순환학회지 한국폐기물자원순환학회지 제28권 제4호
발행연도
2011.1
수록면
429 - 436 (8page)

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초록· 키워드

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The noise was a sensible pollution that has disappeared after short period existences compared with other environmental pollution. However, invisible noise pollution was underlined as treatments technology improvement for air, water and soil pollution. Noise pollution is appeared as increasing noise source contact frequency and accumulating damages. Noise pollution gives various effects on human emotion, feelings and a physiological function. Therefore, a counterplan for reduction of noise pollution is necessary. Therefore, the reduction countermeasure for noise source is primary controlling, secondary controlling is noise occurrence and receiving source, third countermeasure is controlling about noise receiving source. The noise reduction of the most effective method is the secondary countermeasure, not the primary countermeasure by technology and costs. The secondary countermeasure is using the greatest number of porosity absorbent or insulation for a controlling method between the noise occurrence source and the noise receiving source. Efficiency, economic performance and productivity for the porosity absorbent which is made of glass fiber and rock wool is excellent. However, it is real condition that use is limited by human body risks and environmental restriction. Often polyurethane, polyethylene of foaming risen type and polyester of fiber type are used by these constraints but they have shortcoming that do not reach to the glass fiber and rock wool in economic performance and efficiency. Therefore, in this study, I wished to grasp development possibility of waste resources as an absorbent which was investigated to overcome constraint in efficiency and economic performance. Specimen was made to test absorption characteristics. The absorption characteristics of the specimen were measured in 10 Hz ~ 6,300 Hz by 1/3 octave band using two microphones in an impedance tube. The specimen was made of fly ash, bottom ash, sewage carbide, steel slag and waste building materials in considering specimen's physical·chemical special quality. The porosity specimen has different properties according to used materials and manufacture methods. Therefore, development possibility of the waste materials as sound-absorbing materials is seen.

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