Paper Key : IRJ************116
Author: Chethan K T,Sumanth S,Dr L.manjesh
Date Published: 02 Feb 2025
Abstract
ABSTRACT This study investigates the performance of Dense Bituminous Macadam (DBM) mixes incorporating varying percentages of Reclaimed Asphalt Pavement (RAP) and different fillers, including Stone Dust, Fly Ash, and Ground Granulated Blast Furnace Slag (GGBS). The research evaluates the mechanical properties of DBM mixes using Polymer Modified Bitumen (PMB-70) binder, focusing on parameters like Marshall Stability, Indirect Tensile Strength (ITS), and volumetric properties. Different RAP content levels (10%, 20%, and 30%) were assessed to determine the optimal mix for sustainable and economical road construction, aiming to reduce the consumption of virgin materials while maintaining performance standards. The analysis concludes with recommendations on the optimum binder content and RAP percentage, contributing to the efficient use of recycled materials in pavement design for enhanced environmental sustainability.
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