Validity Evaluation of Different Laboratory Asphalt Concrete Material Compaction Methods with Digital Image Processing Technique

Jiang Miao Yu; Zhi Li; Xiao Ning Zhang

doi:10.4028/www.scientific.net/AMR.255-260.3292

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 255-260Validity Evaluation of Different Laboratory...

Validity Evaluation of Different Laboratory Asphalt Concrete Material Compaction Methods with Digital Image Processing Technique

Abstract:

The digital image processing technique was applied to analyze and evaluate the coarse aggregate orientation property in asphalt mixture specimens. Specimens produced by Marshall compaction, vibratory compaction, gyratory compaction, and roller compaction were separately evaluated and compared with the core samples drilled from real asphalt pavement. The quantitative index named maximum likelihood angle (MLA) was developed for statistical analysis on the coarse aggregate orientation. It is found that the coarse aggregate orientation properties of the specimens using different compaction methods have great differences, the specimens produced by laboratory Marshall compaction method has no statistical discipline, the specimen produced by laboratory roller compaction method has the best similarity property with the real asphalt pavement. The results indicate that the MLA is an effective index in evaluating the aggregate orientation, and the roller compaction method should be the first choice in laboratory asphalt mixes specimen preparation.

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Periodical:

Advanced Materials Research (Volumes 255-260)

Pages:

3292-3296

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.255-260.3292

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Online since:

May 2011

Authors:

Jiang Miao Yu, Zhi Li, Xiao Ning Zhang

Keywords:

Aggregate, Asphalt, Compaction

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