RAPID REPAIR OF WET ASPHALT USING COMMERCIAL MIXTURES. INTERIM REPORT

Based on a survey of the districts, three commercially available, prepackaged pothole repair materials were selected for a series of field and laboratory tests. The laboratory tests included a modified Marshall Stability test, an indirect tensile test, and a shear bond strength test. Specimens were exposed to various moisture and temperature environments, including dry-freeze cycling. The laboratory tests were inconclusive in identifying parameters that would predict performance in the field. Recommendations are made that might improve the laboratory testing procedure. Test repairs were made in four distinct geographical and climatic regions of Texas. All but two of the repairs survived the duration of the project. Hence, no conclusive statements concerning performance can be made. Recommendations are made for documenting the continued performance of the repairs and other repairs made with the materials.