Wide Cracks and Joints in Flexible and Composite Pavements: State DOT Maintenance Practices

By: Transportation Research Board and National Academies of Sciences, Engineering, and Medicine and National Cooperative Highway Research Program and David Peshkin

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Synopsis: The repair of transverse cracks and longitudinal paving joints and cracks in asphalt and asphalt-surfaced pavements is a common maintenance activity for state departments of transportation (DOTs). One of the limitations of crack sealing and filling, however, is the width of the crack for which these repairs are successful. NCHRP Synthesis 640: Wide Cracks and Joints in Flexible and Composite Pavements: State DOT Maintenance Practices, from TRB’s National Cooperative Highway Research Program, documents practices used by state DOTs for flexible and composite pavement maintenance for wide transverse and longitudinal cracks and joints.