지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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PURPOSES : Bonded concrete overlay is a favorable maintenance method since the material properties are similar to existing concrete pavements. In addition, bonded concrete overlay has advantage of structural performance since the overlay layer and the existing pavement perform as a monolithic layer. It is important to have suitable bond strength criteria to secure the performance of bonded concrete overlay. This study aimed to investigate the factors influencing bond strength characteristics between existing concrete pavement and overlay material. METHODS: Bond strength between overlay and existing pavement are measured and analyzed for various conditions such as the type of overlay materials, compressive and flexure strength of overlay and existing pavement, and deterioration status of existing pavement. RESULTS: The strength of overlay material does not significantly influence the bond strength. The overlay of ultra-rapid hardening cement generally gives low bond strength. However, ultra rapid hardening polymer modified concrete gives robust bond strength. The deterioration of existing concrete significantly decrease the bond strength. CONCLUSIONS: Bond strength of bonded concrete overlay highly depends on condition of existing concrete pavement rather than overlay material.
목차
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참고문헌 (13)
참고문헌 신청
American Concrete Pavement Association / 2008 / Guide to Concrete Overlays: Sustainable Solutions for Resurfacing and Rehabilitating Existing Pavements, Second Edition
American Society for Testing and Materials / 1996 / Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens
David A. Lange / 2001 / Early Age Stresses and Debonding in Bonded Concrete Overlays, Transportation Research Record 1778 :174~181
Expressway and Transportation Research Institute / 1997 / Pavement Rehabilitation by Concrete Overlay (III)
Granju J. L. / 2001 / Debonding of Thin Cement-based Overlays / Journal of Materials in Civil Engineering 13(2):114~120
American Society for Testing and Materials / 1996 / Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens
David A. Lange / 2001 / Early Age Stresses and Debonding in Bonded Concrete Overlays, Transportation Research Record 1778 :174~181
Expressway and Transportation Research Institute / 1997 / Pavement Rehabilitation by Concrete Overlay (III)
Granju J. L. / 2001 / Debonding of Thin Cement-based Overlays / Journal of Materials in Civil Engineering 13(2):114~120
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