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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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PURPOSES : The field application and performance of continuously reinforced concrete pavement (CRCP), constructed by using the mechanical tube-feeding method, are evaluated in this study. METHODS: The location of the rebar was evaluated by using the MIRA system. The early-age CRCP performance was evaluated via visual survey, in which the crack spacing and crack width were examined. RESULTS: The location of longitudinal reinforcing bars was evaluated via MIRA testing and the results showed that the longitudinal rebars all lie within a given tolerance limit (${\pm}2.5cm$) of the target elevation. In addition, owing to the low temperature when the concrete was pured, the crack spacing in the Dae-Gu direction is slightly wider than that of the Gwang-Ju direction. Almost all of the crack spacings lay within the range of 1.0 m~3.0 m. A crack width of <0.3 mm was measured at the pavement surface. However, as revealed by the field survey, the crack spacing was not correlated with the crack width. CONCLUSIONS : In CRCP constructed by using the mechanical tube-feeding method, almost all of the longitudinal reinforcing bars lay within the tolerance limit (2.5 cm) of the target elevation. The concrete-placing temperature affects the crack spacing, owing to variations in the zero-stress temperature. Crack survey results show that there is no correlation between the crack spacing and crack width in CRCP.
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참고문헌 (11)
참고문헌 신청
Carlos Jofre / 2010 / Contribution of Concrete Pavements to the Safety of Tunnels in Case of Fire
Chon, BeomJun / 2013 / Field application of Continuously Reinforced Concrete Pavement with Mechanical-Placement Machine / 2013 Conderence of Korea Concrete Institute
Elfino, M / 2010 / I-295 CRCP Performance Updates / Virginia Concrete Conference
Gharaibeh, N. / 1999 / Field Performance of Continuosly Reinforced Concrete Pavement in Illinois / Transportation Research Record:Journal of the Transportation Research Board (1684):44~50
Hoegh K. / 2011 / Ultrasonic Tomography Technique for Evaluation of Concrete Pavements / Transportation Research Record: Journal of the Transportation Research Board (2232):85~94
Chon, BeomJun / 2013 / Field application of Continuously Reinforced Concrete Pavement with Mechanical-Placement Machine / 2013 Conderence of Korea Concrete Institute
Elfino, M / 2010 / I-295 CRCP Performance Updates / Virginia Concrete Conference
Gharaibeh, N. / 1999 / Field Performance of Continuosly Reinforced Concrete Pavement in Illinois / Transportation Research Record:Journal of the Transportation Research Board (1684):44~50
Hoegh K. / 2011 / Ultrasonic Tomography Technique for Evaluation of Concrete Pavements / Transportation Research Record: Journal of the Transportation Research Board (2232):85~94
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