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AN EXPERIMENTAL STUDY ON THE USE OF POLYPROPYLENE WASTE IN BITUMINOUS MIX
Abstract
The work focuses on assessing the Marshall properties of High Density Polypropylene (HDPP) waste and its potentiality to mitigate pavement failures due to environmental and traffic loading. Based on design, 4.5, 5.0, 5.5, 6.0 and 6.5% bitumen contents were arbitrarily selected to prepare one hundred and five (105) Marshall specimens having respectively 0, 0.5, 1.0, 1.5, 2.0, 2.5 and 3.0% HDPP waste in Polymer Modified (PM) asphalt concrete. The specimens were tested for stability, flow, compacted density of the mix (CDM) and void analysis. Optimum parameter for Marshall properties obtained are 27.68kN, 2.54mm, 2.45g/cm3, 3.39%, 16.2% and 74.10% respectively for stability, flow, CDM, VIM, VMA and VFB. The results revealed enhanced engineering properties of 2% HDPP at an optimal bitumen content of 5.5% and could satisfy strength and durability requirements of heavy traffic situation.
http://dx.doi.org/10.4314/njt.v36i3.3
