Predicting a Model for Modified Asphalt Cement Rutting Parameters

Abstract:

This paper aims to investigate the relationship between the Superpave rutting parameter of asphalt (G﹡/sin δ) by conducting Dynamic Shear Rheometer (DSR) tests with the rut depth values obtained by the wheel track device. The twenty asphalt mixtures have been prepared with twenty types of unmodified asphalts and Polymer-Modified Binders (PMBs). SBS was used to produce PMBs. The twenty base and modified asphalts have been used to prepare asphalt paving mixtures required to conduct wheel track tests. The predicted model of asphalt mixtures rut depth related to asphalt rutting parameter (G﹡/sin δ) values has been founded. Besides, the minimum limits of (G﹡/sin δ) of aged asphalt have been gotten as 3.25 kPa for Iraqi asphalt cement.

• Periodical: Key Engineering Materials (Volume 895)
• Pages: 1-11
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.895.1
• Online since: August 2021
• Authors: Mohammed Abbas Al-Jumaili, Hamid Athab Al-Jameel*
• Keywords: (G﹡/sin δ) Parameter, Dynamic Shear Rheometer, Performance Grade, Rutting

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