ASPHALT CONCRETE PATCHING MATERIAL EVALUATION Interim Report SR 548 ASPHALT CONCRETE PATCHING MATERIAL EVALUATION Interim Report SR 548 June 2001 Ε SI* (MODERN METRIC) CONVERSION FACTORS APPROXIMATE CONVERSIONS TO SI UNITS APPROXIMATE CONVERSIONS FROM SI UNITS LENGTH LENGTH AREA AREA VOLUME VOLUME MASS MASS TEMPERATURE (exact) ° ° TEMPERATURE (exact) ° ° * ACKNOWLEDGEMENTS DISCLAIMER ASPHALT CONCRETE PATCHING MATERIAL EVALUATION TABLE OF CONTENTS 1.0 INTRODUCTION.................................................................................................................1 2.0 LITERATURE REVIEW..................................................................................................... 3 3.0 FIELD PERFORMANCE EVALUATIONS BY OTHERS.............................................. 9 4.0 FIELD EVALUATION....................................................................................................... 13 5.0 LABORATORY TESTING ............................................................................................... 21 6.0 MATERIAL COSTS........................................................................................................... 27 7.0 SUMMARY, DISCUSSION AND RECOMMENDATIONS.......................................... 29 8.0 REFERENCES .................................................................................................................... 33 APPENDICES LIST OF TABLES Table 1.1: Material application.................................................................................................................................. 1 Table 1.2: Materials evaluated................................................................................................................................... 2 Table 2.1: Pavement patching material characteristics (Kandhal and Mellot 1981) ............................................. 5 Table 3.1: Percent patch failure............................................................................................................................... 10 Table 3.2: Proprietary Cold Mixes Evaluated For Virginia DOT Approval (Prowell and Franklin 1996)....... 12 Table 5.1: Century Drive manufactured pothole data........................................................................................... 14 Table 5.2: Wallace Road manufactured pothole data............................................................................................ 16 Table 5.3: Materials used ......................................................................................................................................... 16 Table 6.1: Patching material gradations (percent passing)................................................................................... 21 Table 6.2: Workability data ..................................................................................................................................... 22 Table 6.3: Cohesion test data ................................................................................................................................... 23 Table 5.4: Percent Coating Data.............................................................................................................................. 25 Table 7.1: Pothole patching material costs ............................................................................................................. 27 Table 7.1: Summary of material performance ....................................................................................................... 30 LIST OF FIGURES 1.0 INTRODUCTION 1.1 ODOT STUDY MATERIALS Table 1.1: Material application Number of Buckets Application Table 1.2: Materials evaluated Product Name Manufacturer Binder Type 2.0 LITERATURE REVIEW 2.1 POTHOLE ORIGIN APWA 1983 2.2 POTHOLE REPAIR CONSIDERATIONS FHWA 1999 Wilson 1993; Prowell and Franklin 1996 FHWA 1998 Thomas 1981 and 1986 Randolph and Anderson 1986 Public Technology, Inc. 1976 Better Roads 1999; Anderson, et al. 1988 Outcalt 1993 2.3 COLD MIX PATCHING MATERIAL GROUPS Wilson 1993; HITEC 1995; FHWA 1999 Better Roads 1996 2.4 COLD MIX PATCHING MATERIALS SELECTION Randolph and Anderson 1986Wilson 1993 Sequeira, et al. 1991; Texas DOT 1999 Estakhri and Button 1997 Kandhal and Mellot 1981 FHWA 1999 Sequeira, et al. 1991; Texas DOT 1999 2.5 POTHOLE PATCHING MATERIAL PRINCIPLES Table 2.1: Pavement patching material characteristics (Kandhal and Mellot 1981) Property Parameter Workability Durability Kandhal and Mellot 1981 Finer and predominately one sized gradation.