Study on Strength Characteristics Improvement of Polyethylene Modified Bituminous Concrete Mixes

Abstract:

The present study shows an investigation on improvement of bituminous binder and its mixes using modified binders with different percentage (1% to 7%) of domestic waste polyethylene (PE).The temperature susceptibility and penetration index (PI) of the modified binders were calculated. It is observed that PI value of modified binder is found higher than unmodified binder. The strength characteristics in terms of Marshall Stability and moisture susceptibility expressed in terms of indirect tensile strength ratio (ITSR) of bituminous concrete were determined in the present study. Marshall stability of the bituminous mixture containing 3% PE increased by 34.2% as compare to mixture containing unmodified binder. The addition of 3% PE to neat bitumen, results in an increase of 20% in indirect tensile strength ratio. Using PE modified binder in bituminous concrete mixes increases stability, indirect tensile strength which turn in provide better resistance against permanent deformation.

• Periodical: Key Engineering Materials (Volume 803)
• Pages: 216-221
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.803.216
• Online since: May 2019
• Authors: Khwairakpam Lakshman Singh*, Debjani Panda
• Keywords: Bituminous Concrete, Modified Binder, Moisture Susceptibility, Waste Polyethylene

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