Recycling Waste Cigarette Butts in Dense Graded Asphalt

Trillions of cigarette butts (CBs) are dumped into landfills globally. CBs leach toxic components into the soil, including heavy metals, tar, and many other chemical compounds. Approximately 7.2 billion CBs are discarded every year in Australia, and 16.8 billion CBs accumulate in the waste management system annually. In previous work, the encapsulation method for CB with bitumen and paraffin wax was developed and encapsulated CB in dense graded asphalt (DGA) was evaluated using bitumen classes C320, C170, and C600. In recent studies, the encapsulation method was improved, and the possible use of bitumen-encapsulated CB (BECB) in stone mastic asphalt (SMA) was demonstrated. To build on this foundational research, the current work aimed to investigate the use of improved BECB in heavy-duty DGA prepared with polymer-modified bitumen (PMB) class A10E. Samples were prepared following VicRoads and Austroads guidelines. In this research, the Marshall stability and flow, resilient modulus, dynamic creep, tensile strength ratio, and indirect tension fatigue test were performed to evaluate the performance of BECB-modified DGA. The results were compared with the control DGA prepared with industry-standard conventional materials. Test results suggested that using 0.5% and 1% BECB in DGA met the industry requirements and endorsed the recycling method of CB in asphalt concrete.

• Record URL:
  https://doi.org/10.1061/(ASCE)MT.1943-5533.0003926
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08991561
• Supplemental Notes:
  • © 2021 American Society of Civil Engineers.
• Authors:
  • Rahman, Md Tareq
  • 0000-0001-5596-3689
  • Mohajerani, Abbas
  • 0000-0001-9495-9535
• Publication Date: 2021-11

Language

• English

Media Info

• Media Type: Web
• Pagination: 04021313
• Serial:
  • Journal of Materials in Civil Engineering
  • Volume: 33
  • Issue Number: 11
  • Publisher: American Society of Civil Engineers
  • ISSN: 0899-1561
  • EISSN: 1943-5533
  • Serial URL: http://ascelibrary.org/journal/jmcee7

Subject/Index Terms

• TRT Terms: Asphalt additives; Asphalt mixtures; Dense graded aggregates; Dynamic modulus of elasticity; Tensile strength; Wastes
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01782284
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Sep 22 2021 12:03PM