Browsing by Subject "Potholes"

Now showing 1 - 4 of 4
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    Best Practices Handbook on Asphalt Pavement Maintenance
    (Minnesota Technology Transfer/LTAP Program, Center for Transportation Studies, 2000-02) Johnson, Ann M.
    The purpose of this handbook is to provide background information about the importance of pavement preservation and preventive maintenance, as well as present maintenance techniques for a variety of distresses and conditions. The major focus of this handbook is on preventive maintenance activities, which are performed while the roadway is still in good condition with only minimal distress, before the pavement falls into a condition where structural overlays, major milling or reclaiming, or replacement is necessary. The most common flexible pavement distresses are cracking, roughness, weathering, raveling, rutting and bleeding. If the distresses identified in a pavement are related to structural deficiencies, the pavement section is most likely not a candidate for preventive maintenance treatment, and should be scheduled for rehabilitation or reconstruction. Maintenance treatments covered in this handbook include: Crack repair w/sealing, including clean and seal, saw and seal, and rout and seal; crack filling, full depth crack repair, fog seal, seal coat, double chip seal, slurry seal, microsurfacing, thin hot mix overlays, and potholes and pavement patching. Tables are outlined giving the most common flexible pavement distresses, along with the best practices for rehabilitation for each. Also given are recommended applications for crack sealers and fillers, surface treatments, and pothole patching. Specifications, technical memoranda and special provisions are included for all treatment methods recommended in the handbook.
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    Comprehensive Field Evaluation of Asphalt Patching Methods and Development of Simple Decision Trees and a Best Practices Manual
    (Minnesota Department of Transportation, 2017-06) Barman, Manik; Dailey, Jay; Dave, Eshan V.; Kostick, Robert D.
    The long-term performance of pothole patches largely depends on the selection of the patching method. A number of pothole patching methods are in practice in Minnesota and other nearby states. However, pavement maintenance crews often encounter problems in selecting the most appropriate patching method because proper guidelines are not available. The objective of this project was to investigate the effectiveness of different pavement patching methods and to develop simple decision trees and a best practices manual. The performance of 20 different pothole patches, which were patched with four different types of patching methods and located at five different construction sites, were monitored for approximately two years. Based on the observed performance of the pothole patches considered in this study, two forms of decision trees and a best practices manual have been developed for selecting the most appropriate patching method for a given pothole condition. The developed decision trees can be used to select the patching method based on the location of the pothole (e.g., along longitudinal joints, localized potholes, etc.), construction season, condition of the pothole, and pothole area and depth. The best practices manual provides guidelines on the selection of patching method, pothole preparation, placement of patching materials, and compaction.
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    Minnesota Taconite as a Microwave- Absorbing Road Aggregate Material for Deicing and Pothole Patching Applications
    (University of Minnesota Duluth, 2004) Zanko, Lawrence M; Hopstock, David M
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    Synthesis Offers Current Practices for Pothole Patching
    (Transportation Engineering and Road Research Alliance (TERRA), 2014-10) Transportation Engineering and Road Research Alliance (TERRA)
    This 2-page fact sheet provides information about a recent National Cooperative Highway Research Program (NCHRP) Synthesis 463 titled Pavement Patching Practices, including current efforts and key findings about materials and methods.