Impact statement: This analytical research advances modeling and design of geogrid reinforced flexible pavement structures to reduce base course thickness and extend pavement life with enhanced structural performance.  

Geogrids enhance the performance and design of flexible pavements by providing reinforcement to the pavement structure. With the latest AASHTO move towards designing pavements using mechanistic concepts, research efforts have focused on developing a mechanistic model and a mechanistic based design procedure for Tensar Earth Technologies, Inc. to evaluate the benefits of including Tensar geosynthetic products in flexible pavement construction. The project is a multi-year research effort to deliver in the end the analytical tools and the design procedure needed to help design and thereby facilitate increased use of Tensar geogrids in pavements.