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2016 Vol.15, Issue 2
Applicability Evaluation of Eco-Friendly Binder Material using Desulfurized Dust in Deep Cement Mixing Method

탈황분진을 활용한 친환경 안정재의 심층혼합공법 적용성 평가

Hyoung-Woo Ko1
,
Se-Gwan Seo2
,
Yang-Jin An3
,
You-Seong Kim4
,
Dae-Sung Cho5*
고 형우1
,
서 세관2
,
안 양진3
,
김 유성4
,
조 대성5*
1Non Member, Researcher, Daewoong Company ltd
2Non Member, Researcher, Zian Company ltd.
3Non Member, Researcher, Zian Company ltd.
4Member, Professor, Department of Civil Engineering., Chonbuk National University
5Student Member, Assistance Lecturer, Department of Civil Engineering, Chonbuk National University
*교신저자. *Corresponding Author. 
30 June 2016. pp. 1-12
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Abstract

In this study, laboratory mixture design test and field test were performed to evaluate applicability of eco-friendly binder material (CMD­SOIL) using desulfurized dust in deep cement mixing method (DCM). As a result of laboratory mixture design test, the uniaxial compressive strength of CMD­SOIL was up to 1.136 times bigger than slag cement by changing the water content, mixing rate, and W/B. Also, it had shown the strength up to 1.222 times bigger in shell content and up to 1.363 times in mixing of floating soil. As a result of field test, field strength/laboratory design criterion strength ratio (λ) is shown 0.77. And this result was similar to earlier studies. From this result, CMD­SOIL can show the same efficiency compared with existing binder.

Keywords
DCM
Desulfurzied dust
Eco-friendly binder
Applicability evaluation
Uniaxial compression test

본 연구에서는 기존의 심층혼합처리공법용 안정재의 문제점을 해결하기 위해 탈황분진을 이용하여 개발한 친환경 지반안정재(CMD-SOIL)의 적용성을 평가하기 위해 실내배합시험 및 현장시험시공을 실시하였다. 실내배합시험 결과 함수비, 투입비 및 W/B 변화에 따른 CMD-SOIL의 일축압축강도가 기존의 고로슬래그 시멘트와 비교하여 최대 1.136배 큰 것으로 나타났고, 패각이 함유된 흙 재료에서는 최대 1.222배, 부상토가 혼합된 시료에서는 최대 1.363배 큰 것으로 나타났다. 또한 현장시험시공 결과, 실내배합강도와 현장강도의 비(λ)가 0.77로 나타나 기존의 연구결과(λ=2/3)와 유사한 경향을 보이고 있어 기존의 안정재와 비교하여 동등 이상의 성능을 발휘할 수 있을 것으로 판단된다.

References
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Information
  • Publisher :Korean Geosythetics Society
  • Publisher(Ko) :한국지반신소재학회
  • Journal Title :Journal of the Korean Geosynthetics Society
  • Journal Title(Ko) :한국지반신소재학회 논문집
  • Volume : 15
  • No :2
  • Pages :1-12
  • Received Date : 2016-02-28
  • Revised Date : 2016-05-20
  • Accepted Date : 2016-05-24
  • DOI :https://doi.org/10.12814/jkgss.2016.15.2.001
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