KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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Feasibility Study the Assessment Factor of Quality Performance Index in Expressway Concrete Pavement

고속도로 콘크리트 포장에 대한 품질평가지수 평가인자의 적정성 검토

  • 이승우 (강릉원주대학교 토목공학과) ;
  • 김경일 (한국도로공사 품질환경처) ;
  • 고동식 (한국도로공사 품질환경처) ;
  • 홍승호 (한국도로공사 도로교통연구원 연구전략팀)
  • Received : 2016.09.23
  • Accepted : 2016.12.06
  • Published : 2017.02.01
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Abstract

Traffic volume increases according to highway expansion and industrial development which causes repetitive defect and durability degradation on pavement. The research of quality assurance system used abroad has introduced Korea. Korea Expressway Corporation (KEC) has developed a Quality Performance Index (QPI) that quantitatively assesses the level of quality of the final product, and practical applications. Assessment factor on concrete pavement consisted of pavement thickness, compressive strength, IRI and spacing factor. Assessment factor on concrete pavement is determined by empirical evaluation factor from abroad. In this study, analysis of evaluation factors of concrete pavement by using pavement life prediction simulation and measured data were evaluated with consideration of feasibility of the assessment factor. Pavement life, performance and durability are affected by pavement thickness, compressive strength, IRI and spacing factor in assessment factor on concrete pavement, QPI.

고속도로의 확충과 산업발전에 따른 물동량 증가로 인하여 도로 구조물의 내구성 저하와 취약구간의 반복적인 하자가 발생하고 있다. 따라서 국외에서 사용하는 품질보증제도 도입방안에 대한 연구가 진행되고 있다. 국내의 경우 한국도로공사는 점검위주의 품질관리에서 목적물의 품질성능 위주의 품질관리 체계로의 전환을 위하여 목적물의 품질 수준 측정이 가능하도록 정량적 평가 지수인 품질성능지수(QPI : Quality Performance Index)를 개발하여 적용하고 있다. 품질성능지수에서 콘크리트포장 평가인자는 포장두께, 압축강도, 평탄성, 기포간격계수로 구성되어 있다. 콘크리트 평가인자의 경우 국외에서 경험적 판단에 의해 자체적으로 선정된 인자를 사용하고 있는 실정이다. 따라서 본 연구에서는 콘크리트 포장 평가인자를 수명예측 시뮬레이션 및 실측 자료를 활용하여 분석하고 평가인자의 적정성을 검토하였다. QPI의 콘크리트포장 평가인자인 포장두께, 압축강도, 평탄성, 기포간격계수는 포장수명, 공용성 및 내구성을 적절하게 판단할 수 있는 인자로 사료된다.

Keywords

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