[V-87] A Study on Increase Durability of High-Performance SMA under the Snowy-Cold Environment
Keywords:High-Performance SMA, Increase of durability, Road surface texture
The high-performance SMA(HP-SMA) was incorporated in the design procedure of the Hokkaido Development Bureau in 2017 and has been widely used mainly in arterial high-standard highways. However, although the HP-SMA ensures traveling safety, it is necessary to improve the durability further because the pavement maintenance and recondition budget decreased largely compared with that of 20 years ago. Improvement of the durability to extend the life of pavement is becoming a social need. Therefore, this study, test construction of the new HP-SMA was conducted. As a result, it was found that the new HP-SMA is more durable than current HP-SMA.
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