Internal Structure Features of Asphalt Mixture for Field Samples

Document Type : Regular Paper

Authors

1 Associate Professor, North Tehran Branch, Payam Noor University

2 Department of Civil, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran

3 M.Sc. Graguated, Faculty of Engineering, Payam Noor University

Abstract

Asphalt mixture is heterogeneous in nature; consequently, macroscopic parameters alone cannot describe the mechanical behavior of the mixture. In recent years, the arrangement of the aggregate particles in terms of spatial and directional distributions, and contact points are contemplated as the internal structure of asphalt. The main purpose of this article is to examine the microstructural characteristics of asphalt cores applying 2-D images. Comparison between the internal structure features in the laboratory samples and the Field samples is indicated in this paper. The results reveal that the survey of microstructural characteristics of asphalt cores by image processing provides new and functional information. This finding indicates that the number of contact points in cores is close to the lab samples that have been made at 45 to 65 blows on each end of the sample.

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References

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History

  • Receive Date: 08 June 2017
  • Revise Date: 03 August 2017
  • Accept Date: 03 August 2017

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