USING FIELD MEASURED STRESSES AND STRAINS TO QUANTIFY FLEXIBLE PAVEMENT RESPONSES TO LOADING

摘要: One of the 12 instrumented sections Virginia Smart Road was used to evaluate effect several loading parameters on measured stresses at different layers and horizontal transversal strain in bottom hot-mix asphalt (HMA) layer. It found that speed does not affect vertical compressive stress all layers, but significantly under HMA Strain decrease by a factor 2.7 when increases from 8km/h 72.4km/h 25 deg C. Variation tire inflation 551.6kPa 724kPa Vertical layer were vary linearly with applied tires' load