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In the remove and replace option, the damaged areas are marked out with paint, the perimeters are saw-cut and the damaged asphalt is removed to a depth of 2” – 6”. Plant hot-mix asphalt is then re-installed in 1 – 3 lifts and compacted with a vibratory roller. The seam is then sealed with a hot rubberized crack sealer to prevent water infiltration.
This method is used widely for pot holes, alligator cracked areas and other areas of asphalt failure.
Full Depth Remove & Replace- If it is determined that the sub-grade below is unsuitable (i.e.: sand, dirt, clay etc), you have the option of having it excavated and replaced with clean stone of recycled asphalt base to prevent the patch from cracking again and needing further replacement. Full depth replacement can be used to remove 4” – 24” of unsuitable sub base.
Infrared has gained popularity in the last decade due to its versatility and environmentally friendly alternative to R & R, remove and replace.
Infrared asphalt restoration is NOT designed for every type of asphalt repair, specifically remediating base failure. It is also NOT designed to repair asphalt which has base failure. If utilized for this application, the patch will fail.
Infrared asphalt restoration is ideal for pot-holes, bad oil spots, low spots / high spots, settling around utility structures, remediating trip & falls where the concrete meets the asphalt for in front of retail stores, sunken utility repairs. etc.
Benefits of Infrared Asphalt Restoration
Throw and patch is an economical option for either emergency or cost effective pothole repairs. The pothole is cleaned free of debris and water and hot mix asphalt is dumped directly into the hole, graded to the proper height and compacted. Throw and patch is sometimes referred to as skin patching.
Throw and patch is typically used when holes need to be filled immidiately, prior to milling and paving to remove tripping hazards or as an option when your budget is not suficient for either cut out repairs or infrared restoration.
Throw and patch stretches your budget dollars and fills more holes per dollar due to the cost savings of not having to incur additonal labor for either excavation for saw cut repairs or lost time waiting for infrared patches to heat to the proper temperature.
Throw and patch repairs will last from 1 - 5 years if performed with hot mix asphalt. If cold patch is used for throw and patch the life expectancy is less than 30 days.
Potholes (sometimes called kettle and known in parts of the Western United States as a chuckhole) are a disruption in the parking lot surface.
Potholes are formed due to fatigue of the pavement surface. As fatigue-cracks develop, they typically interlock in a pattern known as “alligator cracking”. The chunks of pavement between fatigue cracks are worked loose and may eventually be picked out of the surface by continued wheel loads, thus forming a pothole.
The formation of potholes is exacerbated by cold temperatures, as water expands when it freezes and puts more stress on cracked pavement. If a pothole fills with water the growth may be accelerated, as the water ‘washes away’ loose particles of road surface as vehicles pass.
In temperate climates, potholes tend to form most often during spring months when the subgrade is weak due to high moisture content. However, potholes are a frequent occurrence anywhere in the world, including in the tropics (Costa-Rica).
Potholes can grow to feet in width, though they usually only become a few inches deep, at most. If they become large enough, damage to tires and vehicle suspensions can occur.