Book Description

This interim report details the performance of 69 test sites treated with various preventive maintenance treatments. The maintenance treatments applied included crack sealing, full lane chip sealing, wheel path chip sealing, dig outs (mill and fill), blade patching, and combinations of dig outs and crack sealing and dig outs and full lane chip sealing. The test sites are visited yearly to assess the condition of both the maintenance treatment and the pavements in which they were installed. The cost of the treatments ranged from 3 .12 to 4 dollars 2.34 per square yard. All of the treatments were found to be effective in stabilizing the condition of pavements a minimum of two years and as much as four years. The stabilization of the pavement’s condition has allowed WSDOT to extend the time before rehabilitation and extend the pavement life.