Use of Recycled Polymers in Asphalt Concrete for Infrastructural Applications

  • Sook F. Wong
Conference paper


This paper reports the characterization of properties and performance of hot mix asphalt, focusing on stone mastic asphalt (SMA), with various types of recycled polymers (waste plastics). Investigations were conducted on the performance grade of bitumen (penetration value and softening point) as well as mixture strength (Marshall stability, Marshall flow, and Marshall quotient) for different waste plastics blends. The binders studied were conventional bitumen, target bitumen (polymer-modified bitumen), and waste plastics (LDPE, PP, PS, and HDPE). The target bitumen and polymer-modified bitumen with recycled polymers (10 wt% LDPE, 10 wt% PP, 25 wt% PS, and 2 wt% HDPE) were more superior binders than conventional bitumen due to decreased penetration values and increased softening points. The target mixture showed the greatest Marshall stability and Marshall quotient, whereas conventional mixture displayed the lowest values, suggesting the advantageous role of polymer-modified bitumen in target bitumen. SMA mixtures having optimum individual contents of 10 wt% LDPE, 10 wt% PP, 25 wt% PS, and 2 wt% HDPE were found to be feasible design formulations for mixture strength.



The author appreciates the research and development grant awarded by Singapore Ministry of Education Translational and Innovation Fund (MOE TIF) (Project code, MOE2014-TIF-1-G-012). The author is also thankful to the technical staff from the School of Applied Science, Temasek Polytechnic and from the collaborator Yun Onn Company (Pte) Ltd for their continuous support.


  1. 1.
    Wong, S. F., Htwe, A. A., Oh, S. H., Leo, T. Y., Cheng, J., & Tay, B. K. (2017). Utilization of waste plastics in stone mastic asphalt for infrastructural applications. Materials Science Forum (MSF) – Civil and Building Materials, 902, 55–59.CrossRefGoogle Scholar
  2. 2.
    Mahfouz, H., Tolba, I., El Sayed, M., Semeida, M., Mawsouf, N., El Laithy, N., Saudy, M., Khedr, S., & Breakah, T. (2016). Using recycled plastics as hot mix asphalt modifiers. In Proceedings of Conference on Resilient Infrastructure (pp. 1–10). London, UK, 1–4 June 2016.Google Scholar
  3. 3.
    Köfteci, S. (2016). Effect of HDPE based wastes on the performance of modified asphalt mixtures. Procedia Engineering, 161, 1268–1274.CrossRefGoogle Scholar
  4. 4.
    Jassim, H. M., Mahmood, O. T., & Ahmed, S. A. (2014). Optimum use of plastic waste to enhance the Marshall properties and moisture resistance of hot mix asphalt. International Journal of Engineering Trends and Technology (IJETT), 7, 18–25.CrossRefGoogle Scholar
  5. 5.
    Gawande, A., Zamre, G. S., Renge, V. C., Bharsakale, G. R., & Tayde, S. (2012). Utilization of waste plastic in asphalting of roads. Scientific Reviews & Chemical Communications, 2, 147–157.Google Scholar
  6. 6.
    NEA (National Environment Agency, Singapore). (2017). Waste statistics and overall recycling: Waste statistics and recycling rate for 2016. Retrieved June 04, 2017, from:
  7. 7.
    LTA (Land Transport Authority, Singapore). (2010). Materials and workmanship specification for civil and structural works – Document No. E/GD/09/104/A1 (LTA Engineering Group 2010).Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Temasek PolytechnicSingaporeSingapore
  2. 2.American Concrete Institute-Singapore ChapterSingaporeSingapore

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