Problem URETEK and the Pennsylvania Department of Transportation (PennDOT) developed and executed a cooperative pilot project to assess the improvement of transverse joint per- formance in composite pavements following injection of high-density polyurethane. PennDOT planned to use the findings of the study to make decisions about the viability of future, larger-scale repair projects using polyurethane injections. PennDOT chose a section of interstate highway I-80 in Mercer County that became the test site for the project. Analysis The pavement profile at the test site from the surface-down consisted of the following layers: 3.5-inch asphaltic concrete, 13-inch Portland cement concrete, 4-inch open graded sub- base, 8-inch A-2 subbase, and mixed material subgrade. At the start of th

Join for free to read