Impacts of Low-Density Polyethylene (Plastic Shopping Bags) on Structural Performance and Permeability of HMA Mixtures

Shohel Amin, Chayanon Boonyuid

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

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Abstract

This paper examines the optimum contents of bitumen (by weight of aggregates) and Low-Density-Polyethylene (LDPE) plastic (by weight of bitumen) to ensure the long-term performance of HMA mixtures. The coefficient of permeability of HMA samples with different contents of bitumen and LDPE was estimated to understand rainwater infiltration rate. The Marshall Mix Design Procedures ASTM D1559-76 were applied to estimate the Marshall stability and flow values. The falling head method of permeability test estimates the water infiltration rate. The results show that the optimum bitumen content (5.5-6% by weight of aggregates) with higher contents (15% by weight of bitumen) of plastic materials increase structural stability, reduce permanent deformation, increase ductility, and improve fatigue life of HMA mixtures. This study also finds that permeability of HMA mixtures decreases rapidly for 4% to 4.5% of bitumen contents. Impermeability for all type of HMA mixtures increases slightly with 1% to 4% air voids. Findings of this study complement to studies on plastic materials in bituminous pavements such as: (1) estimation of optimum contents of both bitumen and plastic materials in HMA mixtures and (2) estimation of permeability coefficients with different proportion of both bitumen and plastic contents to understand the impacts of plastic materials on the permeability of bituminous pavement.
Original languageEnglish
Title of host publication19th Annual International Conference on Highways and Airport Pavement Engineering, Asphalt Technology and Infrastructure
EditorsHassan Al Nageim, Anmar Dulaimi, Shakir Al-Busaltan
Publication statusPublished - 11 Mar 2020
Event19th Annual International Conference on Highways and Airport Pavement Engineering, Asphalt Technology and Infrastructure - Liverpool, United Kingdom
Duration: 11 Mar 202012 Mar 2020

Conference

Conference19th Annual International Conference on Highways and Airport Pavement Engineering, Asphalt Technology and Infrastructure
CountryUnited Kingdom
CityLiverpool
Period11/03/2012/03/20

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    Amin, S., & Boonyuid, C. (2020). Impacts of Low-Density Polyethylene (Plastic Shopping Bags) on Structural Performance and Permeability of HMA Mixtures. In H. Al Nageim, A. Dulaimi, & S. Al-Busaltan (Eds.), 19th Annual International Conference on Highways and Airport Pavement Engineering, Asphalt Technology and Infrastructure