A sustainable model for enhancing road quality with recycled plastic bags

Authors

  • Osman Gulseven Middle East Technical UNiversity http://orcid.org/0000-0002-1602-3376
  • Shaimaa Ashkanani American University of the Middle East, Kuwait.
  • Sarah Abdullah American University of the Middle East, Kuwait.
  • Hawraa Ismaeil American University of the Middle East, Kuwait.
  • Haneen Alkandari American University of the Middle East, Kuwait.
  • Mariam Baroun American University of the Middle East, Kuwait.

Keywords:

clean environment, recycling, plastic bags, bitumen, asphalt

Abstract

Plastic waste disposal is becoming a serious challenge to all major metropolitan municipalities around the world. If not disposed of properly, the plastic wastes can degrade the environment for several years. In this article, we propose recycling plastic bags as an input in road construction process can improve the road properties. Traditionally, residues from petroleum distillation called bitumen are used in road surfacing and coating. Here, we test the hypothesis that mixing shredded plastic with bitumen in an optimal ratio can enhance the road quality by improving the strength and durability of the asphalt. In order to find out the optimal percentage of plastic content, we applied Marshall stability, retained strength, and stripping tests using a variety of bitumen mixtures with different plastic mix ratios. Our results revealed that the bitumen mixture with 8% recycled plastic ratio is the most durable and strongest mixture with the highest scores from all tests.

Author Biography

Osman Gulseven, Middle East Technical UNiversity

Associate Professor

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Published

02-10-2019

Issue

Section

Earth & Environment