Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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Experimental Study on the Use of High-Volume Fly Ash and Basalt Fiber as Emergency Repair Materials for Slope Stabilization: An Analysis of Basic Quality Characteristics

비탈면 긴급 복구를 위한 하이볼륨 플라이애시 및 현무암 섬유 보강 보수재료의 기초 품질 특성에 대한 실험적 연구

  • Doo-Won Lee (Department of Civil Engineering, Kumoh National Institute of Technology) ;
  • Il-Young Jang (Department of Civil Engineering, Kumoh National Institute of Technology)
  • 이두원 (금오공과대학교 토목공학과) ;
  • 장일영 (금오공과대학교 토목공학과)
  • Received : 2023.12.10
  • Accepted : 2024.05.03
  • Published : 2024.06.30
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Abstract

This paper presents a study aimed at developing repair materials for emergency slope stabilization after disasters such as floods. The research assessed how different mix ratios of fly ash and reinforcement with basalt fibers affect the basic quality properties of mortars. Optimal amounts of fly ash were selected based on these properties, and appropriate amounts of chemical admixtures and thickeners were determined to enhance the quality attributed to the basalt fiber mixture. Notably, high-volume fly ash reduced the need for high-performance water reducers and improved workability, known benefits that also helped mitigate fiber ball issues in conjunction with the effects of thickeners. The experimental results indicated that the developed repair materials could potentially be used for emergency repairs, with a focus on initial age strength. This research aims to provide foundational data for repair materials used in future emergency slope stabilizations.

본 논문에서는 홍수와 같은 재해시 비탈면 긴급 복구를 위한 보수재료를 제조하기 위한 일환의 연구로써, 플라이애시 혼합율에 따른 모르타르, 현무암 섬유 보강에 따른 모르타르를 각각 제조하여 보수재료의 기초 품질 특성에 미치는 특성을 평가하였다. 긴급 복구를 위한 보수재료는 각각의 특성으로부터 최적의 플라이애시 사용량을 선정하였으며, 현무암 섬유 혼합에 따른 기초 품질 향상을 위하여 화학혼화제 및 증점제의 최적 사용량을 도출하였다. 특히 하이볼륨 플라이애시는 알려진 장점으로 인하여 고성능 감수제 사용량 감소 및 작업성 향상이 가능함을 확인하였으며, 증점제 효과와 함께 섬유 뭉침 현상을 해소할 수 있는 것으로 나타났다. 본 실험결과를 통하여 얻어진 보수재료는 초기재령 강도를 중점으로 평가하여 긴급 복구를 위한 보수재료로써의 활용 가능성을 제시하고자 하였다.

Keywords

Acknowledgement

본 연구는 2024년 국토교통부/국토교통과학기술진흥원의 지원으로 수행되었습니다(RS-2023-00250434).

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