PERFORMANCE ENHANCEMENT OF ASPHALT PAVEMENT

Authors

A. SALEH, Petroleum Applications Department, Egyptian petroleum Research Institute, Cairo, Egypt.
M. EL-SHAFIE, Petroleum Applications Department, Egyptian petroleum Research Institute, Cairo, Egypt.
G. ELKADY, Applied Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, Egypt.
M. WASSEL, Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, Egypt.
E. GHALLY, El-naser General Contracting Company (Hassan M. Allam), Cairo, Egypt.

Corresponding Author

GHALLY, E.

Document Type

Original Article

Subject Areas

Chemistry

Keywords

Asphalt; aging; antioxidant; SBR

Abstract

Age hardening of paving grade asphalt is a major factor affecting the durability of bitumen pavement. In this research, 60/70 penetration grade asphalt is modified using Styrene Butadiene Rubber(SBR) in percentages by weight of asphalt ranging from 2 to 6% and 1% by weight of asphalt of an antioxidant namely 4.4. thio bis (6- tertiary butyl – m – cresol (TBMTBP). The antioxidant is used to delay the age hardening . Hot mixes asphalt using the virgin and modified asphalt samples are prepared and evaluated using Marshall test method . Fourier Transform Infra Red (FTIR) is used to analyze all samples of asphaltic materials. The results reveled that, the polymer increased the performance of hot mix and the antioxidant delayed the formation of carbonyl group which is formed as a result of asphalt aging. So, this type of modification is considered as an attractive solution for increasing the performance and the service lifetime of asphalt mix .

How to Cite This Article

SALEH, A.; EL-SHAFIE, M.; ELKADY, G.; WASSEL, M.; and GHALLY, E. (2013) "PERFORMANCE ENHANCEMENT OF ASPHALT PAVEMENT," Al-Azhar Bulletin of Science: Vol. 24: Iss. 1, Article 11.
DOI: https://doi.org/10.21608/absb.2013.6493