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순환자원을 활용한 지반주입재의 SGR(Space Grouting Rocket)공법 적용에 관한 기초연구

A Fundamental Study on Application of SGR(Space Grouting Rocket) Method for Soil Injection Material using Recycled Resources

  • 송상훤 (전주비전대학교 건축과)
  • 투고 : 2024.08.02
  • 심사 : 2024.11.10
  • 발행 : 2024.11.30

초록

본 연구는 순환자원 활용 저시멘트 주입재에 대하여, SGR공법에 적용하는 OPC 및 SC를 대체하는 주입재로 검토를 위해 실내에서 겔타임 시험과 양생일별 호모겔 강도시험을 실시하여 비교하였다. 겔타임시험의 경우 표준시방서에서 제시하는 완결 및 급결 조건을 OPC 및 SC는 만족하는 결과를 나타내었지만. 순환자원 활용 저시멘트 주입재의 경우 급결 조건의 겔타임은 만족하지 못하였다. 수정배합비를 이용하여 급결조건으로 순환자원 활용 저시멘트 주입재의 겔타임시험을 실시한 결과 평균 8.8sec로 확인되어 급결조건을 만족하는 것으로 확인되었다. 또한 겔타임 조건을 만족하는 배합비로 호모겔 강도를 측정한 결과 양생일 28일 기준 1.12-1.88MPa의 압축강도로 나타났다.

In this study, a gel time test in laboratory test and a homogel compressive strength test for each curing day were conducted to compare low cement injection materials utilizing recycled resources as replacement materials for OPC and SC used in the SGR method. In the case of the gel time test, OPC and SC showed results that satisfied the quick setting and final setting conditions presented in the standard mixing ratio. In the case of low cement injection material utilizing recycled resources, the gel time under quick setting conditions was not satisfied. As a result of conducting a gel time test of low cement injection material using recycled resources under quick setting conditions using a modified mixing ratio, the average time was found to be 8.8 sec, confirming that it satisfies the quick setting conditions. In addition, as a result of measuring the homogel compressive strength with a mixing ratio that satisfies the gel time conditions, the compressive strength was found to be 1.12-1.88 MPa as of the 28th day.

키워드

참고문헌

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