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Evaluation of field applicability for grouting method using self-healing grout material

자기치유 물질을 이용한 그라우팅공법의 현장적용성 평가

  • 최용성 (SSC산업(주)) ;
  • 김병일 (명지대학교 토목환경공학과) ;
  • 유완규 (한국건설기술연구원 인프라안전연구본부 차세대 인프라연구센터) ;
  • 이재덕 (SSC산업(주)) ;
  • 최용기 (대원토질 주식회사)
  • Received : 2018.10.17
  • Accepted : 2020.09.02
  • Published : 2020.09.30

Abstract

Due to various advantages such as small facilities, ease of construction and so on, the grouting technology which is widely used in construction field has developed remarkably compared with the past. However, the efforts to improve the homogeneity of quality, long-term durability and environmental problems have been continued. In recent years, new grouting method has been developed in order to solve problems such as low strength, durability and leaching phenomenon of liquid glass (sodium silicate) grouting material in Korea. A newly developed method integrates the injection material with the ground by the self-healing material of crystallization growth type. For this reason, it is known that improvement of the durability and water quality of the ground, prevention of leaching, and environment friendliness can be expected. The present study applied a newly developed method to test sites and verified its effect such as injection range, improvement effect, waterproofing performance and so on. Standard penetration test, field permeability test, borehole shear test, pressuremeter test and pH test were conducted, and the results were compared between before and after developed method application. As results of tests, the field applicability and improvement effect of developed method were proved to be excellent.

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