Abstract
The basic aim of this research is to evaluate the feasibility of using geogrid incorporated C&D wastes and fly ash as road base or subbase material by conducting laboratory tests and finite element analysis. Various laboratory tests were conducted on C&D waste to check its suitability in base/sub-base course, and finite element analysis was done by using PLAXIS 2D to check the effectiveness of geosynthetic reinforcement. Fly ash was used for the stabilization of subgrade soil (BC soil) and also used in the form of a compacted layer over a stabilized subgrade to improve the bearing ratio. Geogrid reinforcement was used to reduce the critical strains in the pavement. It is concluded that Geosynthetic at middle of base course shows the least settlement of pavement and reducing critical strain.
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