Paper Title:
The Effect of Short-Term Aging on Rheological Properties of Asphalts
  Abstract

The effect of short-term aging on rheological properties of asphalts was studied. In this paper, asphalt was aged by rolling thin film oven, which was carried out for 300 minutes and were analyzed at an interval of 75 minutes. The paper gives a description of the most commonly used conventional tests, such as Penetration and Softening Point, and a more detailed description of the viscoelastic behavior and dynamic testing of asphalts by way of Brookfield viscometer and Dynamic Shear Rheometer (DSR). It is found that there are a decrease in penetration and an increase in softening point with aging. The viscosity of aged asphalts was observed to increase with time. The DSR results show that short-term aging significantly increases the complex modulus at low temperature, but complex modulus at high temperature was just lightly affected. The four tests results were also incorporated to evaluate the temperature susceptibility and the rheological characteristics of asphalt binders.

  Info
Periodical
Advanced Materials Research (Volumes 255-260)
Edited by
Jingying Zhao
Pages
3321-3325
DOI
10.4028/www.scientific.net/AMR.255-260.3321
Citation
L. X. Ma, J. F. Huang, Z. D. Li, "The Effect of Short-Term Aging on Rheological Properties of Asphalts", Advanced Materials Research, Vols. 255-260, pp. 3321-3325, 2011
Online since
May 2011
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Price
$32.00
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