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PAVEMENT PRESERVATION TREATMENT CONSTRUCTION GUIDE
CHAPTER 4: PATCHING AND EDGE REPAIR
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Chapter 4: Patching and Edge Repair

Unit 1:

No images.

Unit 2:

Illustrates water penetrating the pavement.

Figure 1: Pothole Formation

 

Graph shows the “survival” rate of various percentages of patching.

Figure 2: Typical Survival Rate Curves

 

 

 

Unit 3:

 

A road crew performs throw and roll patching.

Figure 3: Throw and Roll Patching

Dewatered and Cleaned Pothole

Figure 4: Semi-Permanent Patching

Surface and Base of Pothole Prepared for Treatment

Figure 5: Site Preparation

Tack Coat Applied to All Sides of Hole

Figure 6: Application of Tack Coat

Illustrates compaction of patch material.

Figure 7: Filling the Prepared Hole

Finished Patch with a 3 to 6 mm Crown

Figure 8: Application of Finish Coat

A large, rectangular edge seal.

Figure 9: Edge Seal Application

Dig Out Project

Figure 10: Dig Out Project