Falling Weight Deflectometer (FWD) tests on granular pavement reinforced with geogrids– Case study

Gallage, Chaminda, Eom, TaeWoo, Barker, David, & Ramanujam, Jothi (2015) Falling Weight Deflectometer (FWD) tests on granular pavement reinforced with geogrids– Case study. In Kulathilaka, Athula (Ed.) Proceedings of the International Conference on Geotechnical Engineering (ICGE – Colombo -2015): Geotechnics for Sustainable Development, Colombo, Sri lanka, pp. 597-600.


The use of geogrids in granular pavement layers could increase the modulus and the stiffness of granular layer and hence the required layer thickness can be reduced. Though, geogrids are being used in granular pavements to provide lateral restraint, bearing capacity, and membrane tension support, very limited studies have been carried out to investigate the effects of geogrids on modulus and stiffness of granular layer. In this study, two sections of a granular pavement were constructed: one with a geogrid at the bottom of the base layer and the other without a geogrid. Two sections were then tested using Falling Weight Deflectometer (FWD) and FWD results were analysed to determine the effect of geogrid on the overall modulus and stiffness of the granular pavement. The results suggested that the pavement section with geogrid has higher overall modulus and deflection ratio compared to the pavement section without geogrid.

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ID Code: 90874
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: Pavement, Geogrid, FWD, Modulus
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2015 [please consult the authors]
Deposited On: 01 Dec 2015 02:19
Last Modified: 27 Apr 2016 17:59

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