Results of the Six- and Twelve-Month Evaluations of the Texas Supplemental Maintenance Effectiveness Research Program (SMERP) Sites (2908-1F)

The SMERP (Supplemental Maintenance Effectiveness Research Program) study was designed to study the types of maintenance treatments typically used in Texas. Six maintenance treatments and a control section were applied at twenty test locations throughout the state. Treatments included: asphalt rubber chip seal, polymer modified emulsion chip seal, latex modified asphalt chip seal, asphalt chip seal, and a micro-surfacing treatment. Researchers re-inspected the sites approximately six and twelve months after construction. The data was entered into ASCII files and is in the same format as the output from the SHRP NIMS (National Information Management System) data base. This report presents the preliminary analysis of the change in levels of distress.