Geosynthetics have been proposed and used to reinforce base course layers in flexible pavement sections to reduce base course thickness, or life-cycle costs, or both. Studies show conflicting results regarding the level to which geosynthetics can improve the performance of flexible pavements. To examine the reinforcement role of geosynthetics, a program of study has been initiated to define the mechanisms of base course reinforcement, to define and quantify the effect of site-specific parameters on the level of improvement observed, and to devise a design tool that can be readily applied in practice. This program will eventually involve the instrumentation of a full-scale pavement subjected to moving traffic loads, the success of which is essential to meeting the three objectives. As a first examination of the performance of proposed instruments, a pilot test section was constructed and monitored for approximately 3 months. The test section was chosen and constructed not necessarily to establish geosynthetic performance but rather to evaluate instrument installation techniques and subsequent instrument performance. Instruments designed to measure strain in the geosynthetics, base course, and asphalt concrete were included.


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    Title :

    Instrumentation of a Geosynthetic-Reinforced Flexible Pavement System


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    1997-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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