Paper by SHIMENO KOMATSUBARA KOYANAGAWA from ISCR 8th 1998 Lisbon Portugal
Pavement in Japanese Expressways consists of 90% of asphalt pavement and 10% of concrete pavement. The concrete pavement is generally planned to construct because of its high durability and less maintenance cost. The concrete pavement in Tohoku Expressway has been about 20 years in service since its construction. Therefore, including Tohoku Expressway, concrete pavement sections in all over Japan were searched to evaluate their serviceability and durability. Though there are some issues to be solved, it is found that even concrete pavement section after 20 years passed has good serviceability and durability.
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