Inability of the elastic-layered theory to predict pavement vertical stresses

摘要: Since 2000, truck testing has been conducted over the 12 flexible pavement sections of Virginia Smart Road. The utilized different axle loadings, tire inflation pressures, and speeds under environmental conditions. Measured collected data include stresses layers, horizontal longitudinal strains hot-mix asphalt (HMA) temperatures at depths in system. Vertical were measured layers four designs. Sections E F built using same materials, but they have HMA layer thicknesses. Section G differs from by a 50-mm fine-mix placed underneath base layer. In addition, H structure as G, with exception 75mm treated open-graded drainage (OGDL) vertical stresses, temperatures, aforementioned compared to those calculated linear layered elastic theory identify conditions which can be used. Results indicated that values are higher than low intermediate temperatures. However, high underestimates significantly.