|DISTRESS||POSSIBLE CAUSE||MAINTENANCE SUGGESTIONS|
||Cut wet material out, clean and fill with asphalt mix. Allow an extra 25% of volume for compaction. Use a straight edge to restore patch to existing roadway section.|
||Remove all surface and base to a fine material and replace with an asphalt mix to a minimum depth according to required structural design.|
||Skin patch, spot seal, fog seal or slurry seal. If required for entire project a thin overlay may be required.|
||Blot with screenings, apply chip surface treatment, or thin overlay. If project is pushing or other signs of plastic movement roto-mill/overlay.|
||Roto-mill plastic mixture off and replace with proper mixture. If base material is responsible, remove pavement, scarify and re-compact.|
||Clean area, tack and place a hot-mix skin patch. The area should be string lined for limits of patch.|
||Remove all distressed area to a depth of firm material and replace with the proper asphalt mix, allowing 25% times depth of patch for compaction.|
||Fog seal, slurry seal or overlay.|
||Improve drainage. Remove trees, shrubs etc., close to edge. Fill cracks with asphalt emulsion slurry or emulsified asphalt.|
|Edge Joint Cracks||
||Improve drainage by removing the source that traps the water. Fill with asphalt emulsion slurry or light grade of asphalt mixed with fine sand. Provide side drainage ditches.|
||Remove surface layer from around crack until good bond between layers is found. Patch with plant-mixed asphalt material. Tuck with an asphalt emulsion.|
||Level pavements by filling with hot plant-mired asphalt materials. Follow with thin asphalt plant-mix overlay, or roto-mill and overlay.
Remove plastic mix by milling and replace with stable win.
|Loss of Aggregate on Surface Treatments||
||Spread over affected areas hot coarse sand. After spreading it should be rolled immediately with a pneumatic-tired roller.|
||Re-seal surface using proper procedure and adjustment of equipment.|
|Moisture Damage (stripping) Identified by pavement shoving, bleeding or rutting||
||Remove and replace with good mix.|
|Transverse uniform crack spaces||
||Should use softer grade asphalt.
Pour with ASTM 3405 joint material.