Characterizing the behavior of geogrid-reinforced crushed limestone base materials using monotonic and cyclic load tests

Document Type

Conference Proceeding

Publication Date

12-1-2008

Abstract

A series of monotonic triaxial compression tests and cyclic triaxial tests were conducted on unreinforced and geogrid-reinforced crushed limestone samples to evaluate the effects of geogrid type/stiffness, location and number of layers on the strength, resilient modulus and permanent deformations of these samples. Five different geogrid types were used in this study. For each geogrid type, four different reinforcement arrangements were investigated. The results indicated that the geogrid inclusion within crushed limestone samples significantly increased their elastic modulus and ultimate shear strength, and reduced their permanent deformations. This improvement was due to the geogrid stiffness and arrangement. However, the effect of the geogrid stil Thess was found to be less significant than the effect of the geogrid arrangement. Finally, the results demonstrated that the geogrid did not have a significant effect on the resilient behavior of the crushed limestone samples. © 2008 Taylor & Francis Group, London.

Publication Source (Journal or Book title)

Efficient Transportation and Pavement Systems: Characterization, Mechanisms, Simulation, and Modeling - Proceedings of the 4th International Gulf Conference on Roads

First Page

753

Last Page

759

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