Highway Concrete Pavement Technology Development and Testing: Volume II— Field Evaluation of Strategic Highway

This report documents results from 2 field sites, which include a total of 18 test sections in Minnesota and Ohio. The sites were monitored for long-term performance to verify the effectiveness of freeze-thaw resistance technology. The performance monitoring included annual distress surveys and physical testing of cores taken from the concrete slabs at both sites. Wave velocity was measured at joints at the Ohio site to evaluate some treatments for D-cracking mitigation. The field test sites were installed in 1992 as a part of Strategic Highway Research Program (SHRP) Contract C-203, “Resistance of Concrete to Freezing and Thawing. ” The purpose of both installations was to validate the current frost resistance technology for new concrete in a field environment. In addition, at the Ohio site an additional evaluation was conducted to examine the effectiveness of methods to treat existing D-cracked concrete pavements to mitigate the effect of future D-cracking. Results from the field and laboratory testing over a 6-year period after construction (1992 to 1998) showed very little visual distress at the surface or physical distress of portland cement concrete (PCC) cores taken from the interior portions of the test sections. A description of the field sites and monitoring results are provided. Conclusions reached and recommendations for further study are then presented