Abstract
Jointed Concrete Pavement (JCP) has been constructed in over half of the total expressway system in Korea due to its long service life and low maintenance costs. The JCP on a box culvert is susceptible to failure brought by the freezing and heaving phenomenon during winter. This contributes to the shortening of pavement service life and deterioration of road quality. In order to address this problem, several alternatives have been suggested. The results of temperature variation of the soil layer on a box culvert and the profile measurements show that the water in the soil freezes during winter. Furthermore, it is impossible to prevent this by a dummy ditch, however, a waterproof mat, a tent, and an elastic-asphalt mat can be effective. Based on measurements of moisture contents in the soil, a method to combine a waterproof mat and crack or joint sealing showed good performance. For a soil material and a crown at the top of a culvert, when 1% crown for anti-freezing material or 4% crown for subgrade was applied to the surface, the risk of freezing and heaving decreased.
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Lee, J., Son, D., Kwon, S. et al. Evaluation of methods to prevent soil on a box culvert from freezing-heaving. KSCE J Civ Eng 21, 752–757 (2017). https://doi.org/10.1007/s12205-016-0772-2
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DOI: https://doi.org/10.1007/s12205-016-0772-2