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Moini Jazani, O., Habibi Karahrodi, M., Goli Khorasgani, A., Riazi, H. (2015). Rheological properties of modified Bitumen: Comparison of waste polymers’ performance. Journal of Particle Science & Technology, 1(4), 205-213. doi: 10.22104/jpst.2015.267
Omid Moini Jazani; Marzieh Habibi Karahrodi; Ahmad Goli Khorasgani; Hossein Riazi. "Rheological properties of modified Bitumen: Comparison of waste polymers’ performance". Journal of Particle Science & Technology, 1, 4, 2015, 205-213. doi: 10.22104/jpst.2015.267
Moini Jazani, O., Habibi Karahrodi, M., Goli Khorasgani, A., Riazi, H. (2015). 'Rheological properties of modified Bitumen: Comparison of waste polymers’ performance', Journal of Particle Science & Technology, 1(4), pp. 205-213. doi: 10.22104/jpst.2015.267
Moini Jazani, O., Habibi Karahrodi, M., Goli Khorasgani, A., Riazi, H. Rheological properties of modified Bitumen: Comparison of waste polymers’ performance. Journal of Particle Science & Technology, 2015; 1(4): 205-213. doi: 10.22104/jpst.2015.267

Rheological properties of modified Bitumen: Comparison of waste polymers’ performance

Article 8, Volume 1, Issue 4, Autumn 2015, Page 205-213  XML PDF (940 K)
Document Type: Research Paper
DOI: 10.22104/jpst.2015.267
Authors
Omid Moini Jazani 1; Marzieh Habibi Karahrodi1; Ahmad Goli Khorasgani2; Hossein Riazi3
1Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
2Faculty of Transportation, University of Isfahan, Isfahan, Iran
3Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran, Iran
Abstract
In this investigation, rheological properties of three different polymer-modified bitumen compounds containing recycled polyethylene terephthalate (R-PET), crumb rubber (CR) and poly (styrene-butadiene-styrene) (SBS) are evaluated and compared. The modified samples were tested by a dynamic shear rheometer (DSR) where complex modulus (G*), phase angle (δ) and rutting resistance (G*/Sinδ) of specimens were measured at different temperatures. The obtained results show that the optimum rheological properties will be gained when 7% wt. of a modifier mixture containing R-PET/CR (90/10 weight ratio) is added to the bitumen. In comparison with un-modified bitumen, the one modified by the latter modifier shows phase angle shift 68.9 oC, complex modulus 2190 (Pa) and rutting resistance 2520 (Pa), at temperature 80 oC. Generally, addition of the polymeric modifier increases complex modulus, rutting resistance and rigidity of the bitumen while a little decrease in phase angle is also observed.
Keywords
Bitumen; polymeric-modified bitumen; rheology; crumb rubber; poly (ethylene terephthalate)
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