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http://dx.doi.org/10.12652/Ksce.2012.32.1D.033

An Evaluation of Resistances in Porous Asphalt Concrete Mixtures due to Repeated Cyclic Freeze-Thawing  

Jo, Shin Haeng (경기대학교 대학원 토목공학과)
Kim, Nakseok (경기대학교 토목공학과)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.32, no.1D, 2012 , pp. 33-39 More about this Journal
Abstract
More and more pavements are suffering from damage these days due to the below-zero winter temperatures and frequent snowfalls. From this research, the freeze-thawing mechanisms of pavements will be observed, and the freeze-thawing resistance of porous asphalt concrete mixture is to be evaluated according to various assessment methods. The investigation was conducted through applying rigid and flexible pavements to freeze-thawing resistance experiments, which include various experiments such as deformation rate measurements, Lottman tests, repeated cyclic freeze-thawing experiments, stripping resistance tests and so on. Test results revealed that the porous asphalt concrete had less deformations according to temperatures compared to dense-graded asphalt concrete due to the 20% void gap. In addition, according to the freeze-thawing repetition experiments which are effected by moisture, the porous asphalt concrete mixture showed superior resistance to repeated cyclic freeze-thawing compared to other asphalt concrete mixtures due to the drainage and the voids within the specimen.
Keywords
cyclic freeze-thawing; porous asphalt concrete; stripping resistance; drainage; deformation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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