A Practical Design Guide for Unbonded Jointed Plain Concrete Roads over Deteriorated HMA Roads: Realistic Traffic Loading

This study aimed to determine the material properties and thickness of layers an unbonded jointed plain concrete pavement design over a deteriorated flexible that lost its service capability. Maximum principal stresses occurring under should not exceed modulus rupture concrete. Three-dimensional finite element analyses using ANSYS (Release 18.1 SAS IP, Inc.) software were carried out with Taguchi method. The most reliable solution for was investigated whole configuration axle loading reflects realistic traffic situation. stress values slab due positive temperature gradient neglected in American Association State Highway Transportation Officials (AASHTO) method also investigated. slabs are exposed these longer than loads. Temperature distributions throughout calculated bilinear formulas suggested study. Axle loadings applied on both edge corner reflect critical condition design. type found be 1.2. It observed 0.15 m appropriate class, joint spacing hot mix asphalt (HMA) elasticity levels used 1.22, 1.122, 1.2 + 111 types, but it types. thicknesses AASHTO method, close each other. determined significantly affected maximum stress, performance statistic (S/N) value 1692 type. followed by S/N 0.356, existing 0.244, 0.105. A practical guide recommended extend life highly construction