Now for the final installment of this educational series! If you haven't read the first two posts, they contain other methods and styles of asphalt repair so you may want to skim over them. Here are four more types of asphalt repair methods:
- Wedge Cut: Prior to overlaying, additional material depth often creates lips and drainage problems. Pavement Specialties will use the industry standard of feathering the overlay or buildup down unless the additional cost of wedge cut is Owner determined and paid for under the wedge cut unit price.
- Wedge course or Scrub Coat: Prior to overlays, existing depressions tend to reflect through at 25% or better of existing depth. A wedge course is an optional pre-layer of overlay plant mix designed to first fill the depressions, prior to the overlay, so that existing depressions average less than half of what they would be without a wedge course.
- Asphalt Paving: Pavement Specialties uses either ½ or ¾ inch graded aggregate blended with an asphalt cement. We prefer the bigger sized aggregate, but it also tends to appear more “rocky”. The material shall be a hot mix as commercially manufactured locally for hot asphalt paving, and will be applied within the temperature limitations of the mix, and compacted to 90% or better.
- Overlays: Asphalt overlays are generally 1-inch average after compaction unless otherwise stated. Pavement Specialties will tack the existing asphalt prior to overlay and it is included in the overlay unit price. The standard approach for clearance drains, doors, risers, etc., is to feather the overlay to the existing fixed height demand - unless a wedge cut is specified and/or selected. Wedge cuts, risers, or adjustments to drains, covers, etc. are not included in the overlay price. Existing drainage problems will remain or be compounded. Existing depressions will reflect through (though generally at a less depth) due to the compaction of asphaltic plant mix. A wedge course or scrub coat can minimize these, however, they have added costs and must be specifically specified. Cracks will generally reflect through in short order. We recommend cracks be filled and prepared as per our specifications for crack filling and then paid under the Crackfilling pay item. Many alligators (checker cracked asphalt) do reflect through, some do not. Alligator repair is not included and should be dealt with under their separate pay item. Pavement Specialties will warrant the bond of the overlay only and makes no warranty on drainage, obstacle impacts, crack reflection, height change impacts, or reflective alligatoring.
Find the rest of our series here:
Part 1 covers skin patch, cold patch, and sawcutting.
Part 2 covers R&R asphalt, paving/stabilizing fabric, and stabilizing articles
This final article, along with the previous two will help you to understand what goes into an asphalt repair job. These fixes are all ways that we use our expertise to complete the job so that the customer is happy and gets the highest quality asphalt.
If you have a repair job, give us a call today!