The Effect of Polymer Blends on Fatigue of Asphalt Mixtures

Document Type : Research Paper


1 PhD Candidate, School of Civil Engineering, Iran University of Science and Technology, Tehran, I. R. Iran.

2 Professor, School of Civil Engineering, Iran University of Science and Technology, Tehran, I. R. Iran.

3 MSc. Student, School of Civil Engineering, Iran University of Science and Technology, Tehran, I. R. Iran.

4 Assistant Professer, Civil Engineering Departemrnt, University of Sistan and Baluchestan, Zahedan, I. R. Iran.


Damage in asphalt pavements due to repetitive stresses and strains caused by both traffic loading and environmental factors can manifest itself as fatigue and thermal cracking, respectively. Cracking is considered as a primary distress mechanism in asphalt pavements. Many studies have been carried out on resolving these distresses. One of these ways is the use of polymer modifiers to improve the properties of asphalt binder and asphalt mixtures. Therefore, this research was conducted to study the effects of domestic polymers (with trade names of SBR and PP) in equal proportions on the fatigue properties of asphalt mixtures compared to expensive imported polymer (called SBS). Accordingly, four-point beam fatigue and indirect resilient modulus tests were carried out. It was found that combination of PP and SBR leads to better preservation of fatigue performance of modifed mixes and increases the fatigue life up to 50% compared to SBS-modified mix. Consequently, such polymers combination can be more beneficial than using SBS polymer.


AASHTO PP5. 1993. “The laboratory evaluation of modified asphalt systems”. American Association of State Highway and Transportation Officials, Washington, DC, USA.
AASHTO T321-14. 2014. “Standard method of test for determining the fatigue life of compacted asphalt mixtures subjected to repeated flexural bending”. American Association of State Highway and Transportation Officials, Washington, DC, USA.
Abdul-Mawjoud, A. A. and Thanoon, L. S. 2015. “Evaluation of SBR and PS-modified asphalt binders and HMA mixtures containing such binders”. Appl. Res. J. 1(9): 460-469.
Ameri, M., Mansourian, A., Ashani, S. S. and Yadollahi, G. 2011. “Technical study on the Iranian Gilsonite as an additive for modification of asphalt binders used in pavement construction”. Constr. Build. Mater., 25(3): 1379-1387.
Ameri, M., Vamegh, M., Imaninasab, R. and Rooholamini, H. 2016. “Effect of nanoclay on performance of neat and SBS-modified bitumen and HMA”. Petrol. Sci. Technol., 34(11-12): 1091-1097.
Asphalt Institute. 2007. “MS-4 The Asphalt Handbook”. 7th Edition.
ASTM D1599. 1998. “Test method for resistance of plastic flow of bituminous mixtures using Marshall apparatus”. ASTM International, PA, USA.
ASTM D4123. 1995. “Standard test method for indirect tension test for resilient modulus of bituminous mixtures”. ASTM International, PA, USA.
Barzegari, M. R., Yousefi, A. A. and Zeynali, M. 2002. “Bitumen modification via PS/PB Blend”. Iran. J. Polymer Sci. Technol., 16(67): 303-311.
Cong, L., Peng, J., Guo, Z. and Wang, Q. 2017. “Evaluation of fatigue cracking in asphalt mixtures based on surface energy”. J. Mater. Civ. Eng., 29(3): D4015003.
Imaninasab, R. and Joodaki, S. 2016. “Performance evaluation of polyamine anti-stripping additives”. Proc. Inst. Civ. Eng.-Constr. Mater.
Khattak, M. and Baladi, G. 2001. “Fatigue and permanent deformation models for polymer-modified asphalt mixtures”. Transport. Res. Record: J. Transport. Res. Board, 1767: 135-145.
Kök, B. V. and Çolak, H. 2011. “Laboratory comparison of the crumb-rubber and SBS modified bitumen and hot mix asphalt”. Constr. Build. Mater., 25(8): 3204-3212.
Kok, B. V. and Yilmaz, M. 2009. “The effects of using lime and styrene–butadiene–styrene on moisture sensitivity resistance of hot mix asphalt”. Constr. Build. Mater., 23(5): 1999-2006.
Liang, M., Xin, X., Fan, W., Luo, H., Wang, X. and Xing, B. 2015. “Investigation of the rheological properties and storage stability of CR/SBS modified asphalt”. Constr. Build. Mater., 74: 235-240.
Lu, X. and Isacsson, U. 2000. “Modification of road bitumens with thermoplastic polymers”. Polymer Testing, 20(1): 77-86.
Majidzadeh, K. and Brovold, F. N. 1968. “Effect of water on bitumen-aggregate mixtures”. Highway Research Board.
Navarro, F. J., Partal, P., García-Morales, M., Martín-Alfonso, M. J., Martinez-Boza, F., Gallegos, C., Bordado, J. C. M. and Diogo, A. C. 2009. “Bitumen modification with reactive and non-reactive (virgin and recycled) polymers: A comparative analysis”. J. Ind. Eng. Chem., 15(4): 458-464.
Nciri, N., Kim, N. and Cho, N. 2017. “New insights into the effects of styrene-butadiene-styrene polymer modifier on the structure, properties, and performance of asphalt binder: The case of AP-5 asphalt and solvent deasphalting pitch”. Mater. Chem. Phys., 193: 477-495.
Robinson, H. 2005. “Polymers in asphalt”. iSmithers Rapra Publishing, 128 p.
Rossmann, S. 2007. “Technical guideline: The use of modified binders in road construction”. Pretoria, Asphalt Academy, Second Edition.
Sadeghpour Galooyak, S., Dabir, B., Nazarbeygi, A. E. and Moeini, A. 2010. “Rheological properties and storage stability of bitumen/SBS/montmorillonite composites”. Constr. Build. Mater., 24(3): 300-307.
Salehfard, R., Abdi, A. and Amini, B. 2016. “Effect of SBR/NC on the rheological properties of bitumen and fatigue resistance of hot mix asphalt”. J. Mater. Civ. Eng., 29(5): 04016282.
Wang, S., Zhang, Y. and Zhang, Y. 2003. “SBS/carbon black compounds give asphalts with improved high-temperature storage stability”. Polym. Polym. Composites, 11(6): 477-485.
Yousefi, A. A., Ait-Kadi, A. and Roy, C. 1998. “Effect of elastomeric and plastomeric tougheners on different properties of recycled polyethylene”. Adv. Polym. Technol., 17(2): 127-143.