... Geosynthetics Reinforcements Reinforced Pavement Design Asphalt Thickness Reduction Traffic Benefit Ratio Interlayer Fatigue Crack Increased Traffic Volume Basic SI units are given in parentheses. a 1 structural layer coefficient for the unreinforced HMA layer (dimensionless...

... consumption. Two of the most practical design methods, developed by Al-Qadi and Perkins, were adopted to quantify the cost–benefits provided by geotextiles when incorporated in secondary road flexible pavements. Although both methods showed significant traffic benefit ratio (TBR) at very low California...

... biaxial geogrid between the base and subgrade of a flexible pavement system. The traffic benefit ratio (TBR) was defined as the ratio of the number of load cycles of a stiff geogrid reinforced section, to the number of load cycles of an unreinforced section for a given level of performance. The TBR values...