Comparison of Unbound Granular Materials’ Resilient Moduli Determined by Cyclic Triaxial Test and Innovative FWD Device

In addition to the conventional laboratory tests of input materials and construction mixtures, technically correct design pavement structure involves more frequent functional mixtures. Our study summarizes findings from a long-term monitoring on selected road sections with lower traffic intensity. The research involved comparison resilient moduli as parameter unbound base layers’ granular (UGMs), determined in by test device for cyclical triaxial situ impact load using falling weight deflectometer (FWD). particular, cyclic (Mr,CTT) were compared real values measured FWD (Mr,FWD). A new, unique, innovative was used determine Mr,FWD UGMs. innovation lay dual-axis deflection measurement—measurement performed not just axis parallel road, but also transversal direction. It found that, especially roads load, such (spatial) determination great importance because it often allowed identification local low bearing capacities, at edges, which have significantly value Mr,FWD.