한국도로학회논문집 (International Journal of Highway Engineering)

  • 제19권5호
  • /
  • Pages.33-42
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  • 2017
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  • 1738-7159(pISSN)
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  • 2287-3678(eISSN)
한국도로학회 (Korean Society of Road Engineers)
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콘크리트 포장 부분단면보수 재파손 구간의 적정 보수 방안

Re-Repair Method for Deterioration of Partial Depth Repair Section in Portland Cement Concrete Pavement

  • 이용현 ((주)한국건설품질시험연구원 R&D연구실) ;
  • 김현석 ((주)한국건설품질시험연구원 R&D연구실) ;
  • 정원경 ((주)한국건설품질시험연구원) ;
  • 오한진 (한국도로공사 도로교통연구원) ;
  • 김형배 (한국도로공사 도로교통연구원)
  • 투고 : 2017.06.07
  • 심사 : 2017.09.13
  • 발행 : 2017.10.16
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초록

PURPOSES : The purpose of this study is to suggest the construction and quality control method for the re-repair of a deteriorated partial depth repair for sections of Portland cement concrete pavement. METHODS : An experimental construction was conducted to extend the repair width for removing an existing repair section. A removal method was used to ensure early performance for a deteriorated partial depth repair section. Bond strength and split tensile strength were measured at the near vertical interface layer between the existing pavement and repair material. The area was analyzed for various conditions such as the extended repair area and the removing method of the existing repair section. RESULTS : As a result of analysis of bond strength and split tensile strength, the bonding performance of a milling removed section was improved over a cutting and hand breaker removed section. The bond strength was analyzed to increase slightly as the extended repair width for removing the existing repair section increased. The split tensile strength did not show a clear relationship to an increased extended repair width of an existing removed repair section. CONCLUSIONS : The milling removal method should be applied in the removal of existing deteriorated partial depth repair sections. The extended repair width for a re-repair section should be wider than the existing partial depth repair with at least a 75-mm length and width for the bond strength and the split tensile strength.

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참고문헌

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