C & R is pleased to introduce infrared asphalt patching as another one of our quality services. Infrared patching is the latest technological breakthrough in asphalt patching. To our knowledge we are the only company in the area that offers this service.
Infrared works by burning propane with a mixture of forced oxygen to increase heat.
In turn this extreme heat is absorbed by a patented ceramic blanket that when heated emits approximately 18,500 BTU’s per square foot. In around 7 minutes the blanket will heat the asphalt to 350 degrees 2″ deep in an area as large as 48 square feet.
The infrared heat will not burn the asphalt therefore, the result is asphalt equivalent to fresh plant mix. Obviously, if you have a pot hole some asphalt will need to be added to fill that area but once the two are raked together you can’t tell the difference.ADVANTAGES OF INFRARED PATCHING:
- You end up with a seamless patch. The edges fuse or weld together during compaction because there is no cold joint to butt up to.
- The seamless joint eliminates water penetration and further damage to surrounding areas.
- Unsightly raveling edges that create trip hazards are eliminated.
- The entire process is cost effective compared to saw cutting and removing the area and it does a better job.
- The Asphalt Reclaiming Box that also works from the Infrared heat allows us to be the only contractor who can apply regular asphalt in the winter season when the asphalt plants are closed.
- Pot hole repair: with additional asphalt the process fuses the entire area together for a longer life patch.
- High spots: easily removed by heating the area. No cutting involved.
- Low areas: can be leveled and fused with other asphalt.
- Joints and overlaps: joints in pavement or over laps from partial overlays can be blended in and eliminated.
- Oil spot removal: oil is burnt off in heating process asphalt is raked and recompacted for a perfect patch.
- Alligator cracked areas: can be heated, asphalt added if needed, raked, recompacted. No high cost tear out or ineffective skim coats.
- Speed Bumps can be fused to existing pavement to eliminate tires, snow plows, etc. from popping them loose.
- Areas that are pumping heavy mud and/or water.
- Areas with inappropriate base beneath the asphalt.
- Areas where pavement is too thin (less than 2″ before hitting rock.
- Areas where pavement has completely failed and a full overlay is needed.
Light or Skin Patching
Light or skin patches are patches generally 1″ or less in thickness. Sometimes skin patches are used to fill depressions, in which case the patch could be as thick as three or four inches.
A skin patch differs from removal and replacement because existing asphalt is not removed during skin patching. This type of repair should only be used when there is no base failure, to achieve drainage or for a low budget short term “Quick Fix”.
Skin patches generally use a fine sand aggregate as opposed to coarse aggregate because the edges of the patch are “feathered” out to zero thickness.
Usually skin patched are used to improve the appearance of pavement or stop water penetration.
Key Way Patching
Key Way Patching can be done in large areas where there is not enough base failure to justify Saw Cut and Removal and Replacement.
In Key Way Patching the edge of the patch is milled approx. 2′ wide and 1″ deep. The patch is installed from 1 – 1 1/2″ in depth and compacted. The Key Way makes for a “flush” joint with the old asphalt. No Lip means no raveling like skin patches.
Key Patching falls between the Skin Patching and Saw Cut and Removal. It’s better than Skin Patching in most cases but not as effective as Saw Cut and Removal. The price will also be reflected as filling in between the 2 as well having more material and milling labor than Skin Patching but still not to the extend of Saw Cut and Removal in either case.