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        검색결과 5건

        1.
        2023.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Young Oh Jho, Augusto Cannone Falchetto, Ki Hoon Moon, Dueck Su Sohn
        PURPOSES : The evaluation of the low-temperature performance of an asphalt mixture is crucial for mitigating transverse thermal cracking and preventing traffic accidents on expressways. Engineers in pavement agencies must identify and verify the pavement sections that require urgent management. In early 2000, the research division of the Korea Expressway Corporation developed a three-dimensional (3D) pavement condition monitoring profiler vehicle (3DPM) and an advanced infographic (AIG) highway pavement management system computer program. Owing to these efforts, the management of the entire expressway network has become more precise, effective, and efficient. However, current 3DPM and AIG technologies focus only on the pavement surface and not on the entire pavement layer. Over the years, along with monitoring, further strengthening and verification of the feasibility of current 3DPM and AIG technologies by performing extensive mechanical tests and data analyses have been recommended. METHODS : First, the pavement section that required urgent care was selected using the 3DPM and AIG approaches. Second, asphalt mixture cores were acquired from the specified section, and a low-temperature fracture test, semi- circular bending (SCB) test, was performed. The mechanical parameters, energy-release rate, and fracture toughness were computed and compared. RESULTS : As expected, the asphalt mixture cores acquired from the specified pavement section ( poor condition – bad section) exhibited negative fracture performances compared to the control section (good section). CONCLUSIONS : The current 3DPM and AIG approaches in KEC can successfully evaluate and analyze selected pavement conditions. However, more extensive experimental studies and mathematical analyses are required to further strengthen and upgrade current pavement analysis approaches.
        4,000원
        3.
        2022.10 구독 인증기관·개인회원 무료
        Dueck Su Sohn, Jae Hoon Lee, Kyung Bae Lee, Jong Ho Kim, Hyung Chul Moon
        4.
        2022.10 구독 인증기관·개인회원 무료
        Jong Ho Kim, Kyung Bae Lee, Hyung Chul Moon, Jang Rak Kim, Dueck Su Sohn, Jae Hoon Lee
        5.
        2022.10 구독 인증기관·개인회원 무료
        Jong Ho Kim, Kyung Bae Lee, Hyung Chul Moon, Hyun Seok Kim, Dueck Su Sohn, Jae Hoon Lee