Improving the Aging Effect of Bitumen and SBS Modified Bitumen by Using Newly Prepared Antioxidants
Mansour, A., Ghaly, N., Eldidamony, A., Nessim, M., Mohamed, M. (2020). Improving the Aging Effect of Bitumen and SBS Modified Bitumen by Using Newly Prepared Antioxidants. EKB Journal Management System, 63(6), 2213-2233. doi: 10.21608/ejchem.2019.18500.2151
Ahmed S Mansour; N F Ghaly; Akram Eldidamony; Maher Nessim; Manal G. Mohamed. "Improving the Aging Effect of Bitumen and SBS Modified Bitumen by Using Newly Prepared Antioxidants". EKB Journal Management System, 63, 6, 2020, 2213-2233. doi: 10.21608/ejchem.2019.18500.2151
Mansour, A., Ghaly, N., Eldidamony, A., Nessim, M., Mohamed, M. (2020). 'Improving the Aging Effect of Bitumen and SBS Modified Bitumen by Using Newly Prepared Antioxidants', EKB Journal Management System, 63(6), pp. 2213-2233. doi: 10.21608/ejchem.2019.18500.2151
Mansour, A., Ghaly, N., Eldidamony, A., Nessim, M., Mohamed, M. Improving the Aging Effect of Bitumen and SBS Modified Bitumen by Using Newly Prepared Antioxidants. EKB Journal Management System, 2020; 63(6): 2213-2233. doi: 10.21608/ejchem.2019.18500.2151

Improving the Aging Effect of Bitumen and SBS Modified Bitumen by Using Newly Prepared Antioxidants

Egyptian Journal of Chemistry
Article 17, Volume 63, Issue 6, June 2020, Page 2213-2233  XML PDF (1.78 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2019.18500.2151
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Authors
Ahmed S Mansour email 1; N F Ghaly2; Akram Eldidamony3; Maher Nessimorcid 4; Manal G. Mohamed5
1Petroleum applications department, Egyptian Petroleum Research Institute, Naser City, Cairo, Egypt.
2Petroleum applications department, Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt.
3Department of Chemistry Faculty of Science, Zagazig University Zagazig, Egypt
4Egyptian Petroleum Research Institute
5Petrochemicals department, Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
Abstract
Thermal oxidative aging of bitumen has a bad effect on the durability of bitumen binder. We aim in this research to reduce the thermal oxidative aging of bitumen by preparing two compounds namely (R-OCH3=AO1) and (R-NO2=AO2) and examined as antioxidants. These compounds characterized via the conventional spectral tools of analysis (FTIR and 1H-NMR). They mixed with local bitumen (60/70) at different concentrations ratios (0.25, 0.5 and 1%) then aged via TFOT at 170°C for 5 hours. The effect of them evaluated based on the changes in FTIR, total acid number (TAN) and the physical properties of bitumen before and after the thermal oxidation. The results showed that 0.5, 1% of AO1 antioxidant gave the best results of modification of bitumen. After the samples modified with these two concentration ratios of antioxidant AO1, they mixed with 3% Styrene Butadiene Styrene (SBS) polymer then aged via TFOT at 170˚C for 5 hours. The effect of the antioxidant in reducing the aging of the SBS modified bitumen (SBSMB) was evaluated through the changes in FTIR, TAN and the physical properties of bitumen before and after the thermal oxidation. The results illustrated that the best modification of SBSMB was at 1% (AO1).
Keywords
Bitumen; Oxidative Aging; antioxidants; Physical Properties and Total Acid Number
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