Paper Title:
Research of Particle Contact Mechanics Behaviors and Applicative Evaluation for Asphalt Mixture
  Abstract

Different gradation types may have different particle contact behaviors for asphalt mixture, so that it holds diverse pavement performances. The particle contact theory explains the particle contact behaviors law during movement. A particle contact behaviors model was established, which is easy to describe and apply on the spot. A line contact stiffness model was used to simulate particle contact behaviors for gradation types of CA0.2, CA0.4, CA0.6 and CA0.8 when particle of asphalt mixture is moving with dead weight. Their pavement performances were verified with Marshall test, wheel tracking test, gyratory compacting test and the index of potential energy test under optimum asphalt content. Test results show that their service performance is identical to simulation result of particle contact during movement with dead weight. With the help of the research, it can supply some theoretical and applicative bases for an optimum mixture gradation design and indoor gradation simulating design for asphalt mixture.

  Info
Periodical
Advanced Materials Research (Volumes 168-170)
Edited by
Lijuan Li
Pages
86-93
DOI
10.4028/www.scientific.net/AMR.168-170.86
Citation
S. L. Wang, X. Y. Zhu, X. Tang, "Research of Particle Contact Mechanics Behaviors and Applicative Evaluation for Asphalt Mixture", Advanced Materials Research, Vols. 168-170, pp. 86-93, 2011
Online since
December 2010
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Price
$35.00
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