$Cr^{6+}$ leaching property of cement using high performance lignin

고성능 혼화제를 이용한 시멘트의 $Cr^{6+}$ 용출특성

  • Park, Hyun (Department of Advanced Materials Engineering, Kangwon National University) ;
  • Kim, Kyung-Nam (Department of Advanced Materials Engineering, Kangwon National University)
  • 박현 (강원대학교 삼척캠퍼스 신소재공학과) ;
  • 김경남 (강원대학교 삼척캠퍼스 신소재공학과)
  • Published : 2009.06.30

Abstract

To study possibility of $Cr^{6+}$ solid solution and efficiency of admixture, leaching property of Portland cement mortar was investigated by using KSLT (Korea Standard Leaching Test), TCLP (Toxicity Characteristic Leaching Procedure), Soacking procedure, as adding excess $Cr^{6+}$. As a result, admixture of lignin type showed high compressive strength of mortar but no changing leaching property.

$Cr^{6+}$의 고용화 가능성과 lignin계 혼화제의 성능을 조사하기 위하여 과잉의 $Cr^{6+}$을 첨가하여 KSLI, 미국 TCLP법, Soaking Procedure를 이용하여 각 기준에 따른 용출 특성을 조사하였다. 그 결과 lignin계 혼화제는 첨가에 따라 모르타르 강도 증진을 보였으며 용출 특성에 큰 변화는 없었다.

Keywords

References

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