Sustainability of Geogrid Reinforced Flyash Treated RAP Bases in Flexible Pavements

M G, Anu and Saride, Sireesh (2014) Sustainability of Geogrid Reinforced Flyash Treated RAP Bases in Flexible Pavements. In: International Conference on Sustainable Civil Infrastructure ICSCI-2014, 17-18 October 2014, Hyderabad, India.

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Abstract

A large amount of reclaimed asphalt pavement (RAP) materials are created every year during the rehabilitation and reconstruction of existing flexible pavements. This RAP material treated with cementitious materials like cement and lime can be used as base material for pavements. The use of RAP material instead of natural aggregates as the base layer will impart sustainability to the pavement construction and further sustainability can be enhanced by reinforcing it with geogrids thereby improving the strain and deformation properties of the pavement layers. In this study, the reduction in thickness of the pavement is evaluated when natural aggregate is replaced by fly ash treated RAP as the pavement base material. Also the effect of geogrid reinforcement in the flexible pavements is analyzed using a two-dimensional explicit finite difference program FLAC (Fast Lagrangian Analysis of Continua). The results indicate that the geogrid placed at the interface of subgrade and base layer further reduces the rutting strains and improves the structural support to the pavement system.

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IITH Creators:
IITH CreatorsORCiD
Saride, SireeshUNSPECIFIED
Item Type: Conference or Workshop Item (Paper)
Subjects: Civil Engineering
Divisions: Department of Civil Engineering
Depositing User: Library Staff
Date Deposited: 09 Sep 2019 08:16
Last Modified: 09 Sep 2019 08:16
URI: http://raiith.iith.ac.in/id/eprint/6152
Publisher URL:
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