Pavement Structure Repair Techniques
|Shoulder Maintenance (VH-335A)|
Three types of shoulder maintenance on rural roads are presented in this video: reshaping, low shoulder repair, and high shoulder repair. These operations are outlined first and then presented with more detailed instructions. Necessary equipment is listed and the maintenance steps are shown, with particular attention on grader operation. The functions and a shoulder and cross-section design specifications are also explained.
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|Asphalt Chip Seals (VH-335B)|
This introductory video on planning and managing chip seal repairs presents a 7-step procedure: examining existing pavement, repairing pavement, cleaning surface, applying asphalt, spreading aggregate, rolling aggregate, and removing excess aggregate. The video explains the purpose of a chip seal and shows types of pavement distress for which chip seals are appropriate. Procedures are first outlined and then demonstrated. Equipment is shown for each step, and key points and common problems are highlighted.
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