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1 Kim, Jincheol ( Bae, Sungho ( Lee, Jinho ( Yang, Jaebong ( Kim, Jiwon ( ABSTRACT PURPOSES : The purpose of this study was to break away from the workforce method using cold-mix asphalt mixtures and has a constant quality and has develop repair materials of pre-production asphalt-precast types. METHODS : The selection of the repair material was determined as the results obtained through physical properties of materials and the field applicability. In case of repair materials, values obtained through Marshall stability test & the dynamic stability test & retained stability test as well as the site conditions was considered. In case of adhesive, test results were obtained through examination of the bond strength(tensile, shear) and the field applicability of the adhesive was examined through combined specimens to simulate field applications. RESULTS : According to the results of laboratory tests, in the case of repair materials, Marshall stability and dynamic stability, retained stability of cold-mix reaction type asphalt mixture is the highest. In the case of adhesive, two-component epoxy-urea has a very high bonding strength(tensile, shear) was most excellent. According to the results of field tests, when epoxy-urea was excellent workability. Also, the repair body through actual mock-up test did not occur large deformation and fracture after 12 months. CONCLUSIONS : A suitable repair material is cold-mix reaction type mixture of asphalt-precast, a suitable adhesive is a two-component epoxy-urea. Keywords pothole, asphalt-precast, repair materials, adhesive Corresponding Author : Jinho Lee, Researcher Korea Petroleum Ind. Co. Ltd. R&D Center, 1936, Nambuk-daero, Yangseong-myeon, Anseong-si, Gyeonggi-do, , Korea Tel : ~4 Fax : jhlee1@hansuk.co.kr International Journal of Highway Engineering ISSN (print) ISSN (Online) 21

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7 baseboard fixing screws force adhesive Asphalt precast body force Asphalt precast body adhesive baseboard 27

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13 Baek,S. H., Kim,J. C.,Doh, Y. S. and Kim, K. W.(2009), ptimum loading speed for deformation strength test of bitumen mixtures, Proceedings, 7th RILEM Symposium ACTBM09, Rodos, Grees. Cho. M. J., (2013), Investigation into Bonding Characteristics of Tack Coat Materials for Asphalt Overlay on Concrete Pavement, Journal of the Korean Socirty Road Engineers, Vol.15, No.4, pp Korea Agency for Infrastructure Technology Advancement(2012), Integrated Pot-Hole Repair System 1st Research Reports Korea Agency for Infrastructure Technology Advancement(2013), Precast Pot-Hole Repair System 2nd Research Reports Korea Expressway Corporation Research Institute, (2005), A Study on Moisture Susceptibility Characteristics of Asphalt Mixtures KS F 4931, 2007, Waterproofing Sheets for Concrete Deck of Bridge, Korean Agency for Technology and Standards. La, I. H. Ryu, M. Y., Kim, H. H. Ahn, K. A., Doh, Y. S. and Kim, K. W.(2009), Fundamental property evaluation of styrene monomer modified warm-mix asphalt concrete, Proceedings, 7th RILEM Symposium ACTBM09, Rodos, Grees. Lee, K. H., Lee K. H.(2000), Laboratory Investigation into Mix Design Procedure and Criteria of Guss Asphalt, Journal of the Korean Socirty Road Engineers, Vol.2, No.2, pp Ministry of Land, Transport and Maritime Affair(2005), Improvement of Design & Construction Technologies for Perpetuating Pavement(3Years): Development of Materials & Construction Technologies for Preventing from Pothole on Asphalt Pavement Ministry of Land, Transport and Maritime Affair(2009), Asphalt Pavement Production and Construction Guidelines. Seoul Metropolitan Government(2014), Road Management Agency Workshop of the Metropolitan Area for Porthole Reduction 33

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Æ÷Àå½Ã¼³94š Cho, Mun Jin (E-mail: mjcho@ex.co.kr) ABSTRACT PURPOSES : The performance of tack coat, commonly used for layer interface bonding, is affected by application rate and curing time. In this study, bonding