한국건설순환자원학회논문집 (Journal of the Korean Recycled Construction Resources Institute)

한국건설순환자원학회 (Korean Recycled Construction Resources Institute)
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굴착토를 활용한 속경성 유동성 채움재의 공학적 특성 평가

Engineering Characteristics Assessment of Rapid Set Controlled Low Strength Material for Sewer Pipe Using Excavated Soil

  • 김영욱 ((재)한국건설생활환경시험연구원 대전.충남지원) ;
  • 이봉춘 ((재)한국건설생활환경시험연구원 내진센터) ;
  • 정상화 ((재)한국건설생활환경시험연구원 영남본부)
  • Kim, Young-Wook (Daejeon & Chungnam Branch, Korea Conformity Laboratories) ;
  • Lee, Bong-Chun (Seismic Safety Center, Korea Conformity Laboratories) ;
  • Jung, Sang-Hwa (Yeongnam Division, Korea Conformity Laboratories)
  • 투고 : 2020.10.12
  • 심사 : 2020.10.30
  • 발행 : 2020.12.30
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초록

본 연구에서는 현장 굴착토를 활용한 속경성 유동성 채움재의 배합요인별 유동성, 재료분리 저항성, 재령별 압축강도 등의 공학적 특성을 검토하여 속경성을 발현하는 배합비 및 결합재 조건을 도출하였으며, 이를 토대로 현장 모사 실험을 실시하여 현장에서 적용 가능한 후속공정 개시기 검토 방법의 유효성을 검토하고자 하였다. Kelly ball 낙하시험과 산중식 토양 경도계의 평가결과 유동성 채움재의 후속공정 개시기 확보 가능한 시간은 동일하게 약 3시간으로 나타났으며, 일축압축강도 시험의 결과와 비교하였을 때 Kelly ball 낙하 시험 및 산중식 토양경도계의 현장 적용성에 대한 유효성을 확인할 수 있었다.

In this study, engineering characteristics such as flowability, segregation and compressive strength by age to derive fast hardening material mixing proportion using excavated soil. And based on optimal mixing proportion, field simulation experiment conducted in laboratory to examine the effectiveness of the method such as kelly ball drop test and soil penetration test for reviewing the following process. As as a result of evaluation, in case of kelly ball drop test and soil penetration test were securing the following process initiation time 3 hours after place CLSM. As results of these assessments, kelly ball drop test and soil penetration test were applicable for revewing following process in construction field besides unconfined compressive strength method.

키워드

참고문헌

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