Experimental and Numerical Investigation of Load Failure at the Interface Joint of Repaired Potholes Using Hot Mix Asphalt with Steel Fiber Additive

The maintenance of potholes is a long-standing problem. Previous studies focused on pothole patching materials and methods but not bonding at the interface joint. In this study, influence shape depth joint using two materials: hot mix asphalt (HMA) containing 5% (by volume) steel fiber (HMA+) was investigated. Slabs with circular square in middle different depths (35, 50 70 mm) were prepared. shapes patched HMA HMA+, depths. slabs tested after rigid frame. experimental results compared those obtained from finite element analysis ABAQUS software, applying same model dimensions properties used. indicated that for circular-patched slightly improved HMA+ independent depth. As square-patched potholes, better than ones; increased increasing Using increased, only 3.5 cm