| The Superpave mix design method is widely implemented in the Unites States. Fundamental tests have been developed to assess a pavement's distress; however, those tests are time-consuming and require special equipment. Simpler tests, such as wheel tracking devices, have been developed. The most common is the Asphalt Pavement Analyzer, APA, a loaded wheel tester method to evaluate rutting, moisture susceptibility, and fatigue cracking.; This research focused on establishing whether there are relationships between the APA rutting potential and field performance. The APA was used to measure the rutting potential of Superpave mixes constructed throughout the state. Then the WVDOH provided rutting data from their pavement condition database. Comparison between the laboratory rutting potential and the field results was established. The APA test results indicate the Superpave mixes used in the state are not rut susceptible. The field data verifies that pavements constructed with Superpave mixes are not rutting. |
