Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)

The Korean Institute of Building Construction (한국건축시공학회)
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Decision of Optimum Drilling Time for the Injection Based Repair Methods of the Impaired Concrete

주입 보수공법 적용시 콘크리트의 드릴링 가능 시기 고찰

  • 한수환 (청주대학교 건축공학과) ;
  • 최윤호 (청주대학교 건축공학과) ;
  • 현승용 (청주대학교 건축공학과) ;
  • 김종 (청주대학교 건축공학과) ;
  • 한민철 (청주대학교 건축공학과) ;
  • 한천구 (청주대학교 건축공학과)
  • Published : 2020.06.12
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Abstract

In this study, optimum time of drilling for injection of repair material was determined through surface stripping and cracking investigation by drilling from the 1 days to the 3 days of the age for the specimens with ∅100 mm. No surface stripping and cracking occurred on the third day of age, and the compressive strength value was above 14 MPa, which resulted in the appropriate time for drilling on the third day of age.

Keywords