The use of Neoloy Geocells to confine RAP to minimize increased or excessive permanent deformation under traffic loading was tested showing smaller permanent deformations and reduced vertical stresses more than the unreinforced RAP bases. Strain measurements demonstrated that the Neoloy reinforced RAP base behaved as a slab while the unreinforced base behaved as a tensioned membrane. Neoloy Geocells improved the life of reinforced RAP base sections by a factor of ~10.

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