Evaluating Pavement Design Features: Five Year Performance Evaluation of FA 401 and FA 409. Physical Research Report No. 112.

摘要

In the summer of 1986, the Illinois Department of Transportation began the construction of four demonstration projects which focused on evaluating proposed mechanistically-based asphalt concrete (AC) and portland cement concrete (PCC) pavement design procedures and determining the effects of pavement design variables on pavement performance. The demonstration projects were proposed in an experimental features work plan entitled Evaluating Pavement Design Procedures. This report details the construction and performance monitoring of the demonstration projects. The construction sections of this report describes the pavement locations, cross sections, instrumentation, and construction details. Of particular interest is the subsection on instrumentation, which details the types of monitoring equipment and gauges installed in the demonstration projects. The performance monitoring section of this report describes in detail the extensive monitoring performed to date on the demonstration projects. The performance monitoring included condition surveys, structural response monitoring, moisture monitoring, surface response monitoring, and maintenance. The condition surveys included Condition Rating Survey reviews, distress surveys, patching efforts, moisture damage study results, and rutting surveys. The structural response monitoring included full-depth AC pavement deflection testing,and PCC pavement deflection testing, strain gauge measurements, hinge joint movements. The moisture monitoring included under drainout flow, subgrade moisture,and frost depth data. The surface response monitoring included ride ciuality and friction testing. In general, most of these performance indicators showed the demonstration projects were performing as the proposed mechanistically-based design procedures had predicted.