Regression Models for Predicting the Behavior of Sand Reinforced with Waste Plastic

Authors: RAKESH KUMAR DUTTA, G. VENKATAPPA RAO

Abstract: This paper presents regression models for predicting the behavior of sand mixed with waste plastic. For this purpose, drained triaxial compression tests with strain measurements were conducted on sand mixed with waste plastic LDPE strips and HDPE strips. The joint effects of LDPE strip content (up to 0.15%), HDPE strip content (up to 2%), aspect ratio (up to 2), and confining pressure (up to 276 kPa) on the behavior of sand, using multiple regression analysis, were investigated for ground improvement. Utilizing some portion of waste plastic in this way will reduce the quantity of plastic waste requiring final disposal in landfills.

Keywords: Energy absorption capacity; Deviator stress, Initial stiffness, Cohesion, Friction angle

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