APPLICATION OF LOW TEMPERATU RE PROPERTIES IMPROVEMENT ASPHALT TO REPAIRE WORK OF RO CK FILL DAM WITH ASPHALT FACING
Abstract
The low temperature properties improvement asphalt that is no decreasing the transformation follow and the stress relaxation properties at the low temperature was developed. It aimed at properties of PG64-28 (lowest temperature 28 degree C and maximum temperature 64 degree C that was able to be used) from PG (Performance Grade) of mix design method SUPERPAVE (Superior Performance Pavement) of new road-building plan SHRP (Strategic Highway Research Program) in the United States when developing.
When the repair work of the rock fill dam with asphalt facing located in Kyogoku-cho Abuta-gun Hokkaido was planned, the applicability of the developed asphalt was verified. As for the verification outcome and the developed asphalt, it was proven that it was applied to the repair construction, and there was no problem in manufacturing and construction.- Publication:
-
Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
- Pub Date:
- 2011
- DOI:
- 10.2208/jscejpe.67.1
- Bibcode:
- 2011JSCPE..67....1S
- Keywords:
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- asphalt facing;
- modified asphalt;
- deformation responsivity;
- stress relaxing;
- thermal stress