Micromechanical-Rheology Model for Predicting the Complex Shear Modulus of Asphalt Mastic

Abstract:

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The dynamic shear rheometer (DSR) was used to measure viscoelastic properties of asphalt mastic. Mechanical volume filling effects and additional interacting mechanisms within mastic systems are discussed on the basis of micromechanical-rheology model to predict the complex shear modulus of asphalt mastic from the measured mastic data. The Einstein coefficient is 3.761, and the maximum volumetric packing fraction is 0.562 for the measured asphalt mastic. The predicted G* of asphalt mastics is very close to the actual value, and the relative error is not exceeding 10%. The micromechanical-rheology model can predict the complex shear modulus of the asphalt mastic from the viscoelastic property of neat asphalt, the volumetric filler effect and an interactive effect between the filler and the asphalt.

Info:

Periodical:

Advanced Materials Research (Volumes 168-170)

Edited by:

Lijuan Li

Pages:

523-527

DOI:

10.4028/www.scientific.net/AMR.168-170.523

Citation:

J. P. Zhang et al., "Micromechanical-Rheology Model for Predicting the Complex Shear Modulus of Asphalt Mastic", Advanced Materials Research, Vols. 168-170, pp. 523-527, 2011

Online since:

December 2010

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Price:

$35.00

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