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가혹한 조건에서 열화된 콘크리트의 중금속 용출에 대한 환경 안전성 평가

The Environmental Safety Evaluation on Heavy Metal Leaching of Deteriorated Concrete under Severe Conditions

  • 투고 : 2013.04.02
  • 심사 : 2013.06.09
  • 발행 : 2013.10.31

초록

1997년 시멘트 산업은 자원 재활용 목적을 위하여 산업폐기물을 시멘트 공장에서 사용하기 시작하였다. 그러나 최근, 산업폐기물의 재활용에 따른 시멘트의 환경유해성이 시멘트 공장주변의 오염과 시멘트 내 중금속 용출로 인하여 문제가 제기되고 있는 실정이다. 특히, 시멘트 내 $C^{6+}$의 존재는 중요한 문제가 되고 있으며, 시멘트 내 $C^{6+}$ 최소화를 위한 연구가 수행되고 있다. 그러나 국내에서는 중금속 용출에 관련된 연구는 대부분 시멘트 관점에서 수행되고 있는 실정이다. 시멘트는 콘크리트 재료로 사용되기 때문에 콘크리트 관점에서의 환경안전성 평가가 필요하다. 따라서 이 논문에서는 가혹한 조건에서 열화된 콘크리트의 중금속 용출평가를 실시하였다. 평가 결과 모든 변수에서 $C^{6+}$는 검출되지 않았다.

Cement industry in 1997 began to use industrial waste in cement factory for purpose of resource recycling. However recently, environmental hazard of the cement in accordance with recycling of industrial waste have been raised a problem by contamination around the cement factory and heavy metal leaching in cement. In particular, the presence of $Cr^{6+}$ in cement has become a critical issue, the studies for minimizing of $Cr^{6+}$ in cement have been performed. But, in domestic, most of the research on heavy metal leaching was carried out from the perspective of the cement. Environmental safety assessment in terms of concrete is needed because cement is used to the concrete material. Therefore, this paper was evaluated heavy metals leaching of deteriorated concrete by severe conditions. test result showed that $Cr^{6+}$ were not detected from all the variables.

키워드

참고문헌

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