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Ridge Metal Works
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Pavement Solutions

PO Box 23155
Cincinnati, OH 45223
Phone: 513-681-5800
Fax: 513-681-5550

Infrared Patching of Blacktop

"Seamless Patching "

What is it?

Infrared thermal bond asphalt pavement patching is a method of blending new asphalt with infrared, in-place heated asphalt to create a joint-free integral patch. See the pictures below. The machine can heat the asphalt, in-place, to a depth of about 3 inches without burning. There is no flame in direct contact with the asphalt unlike some competing in-place heating units.

Infrared, meaning below red, is an invisible wavelength that carries heat. Our repair unit uses this to recycle asphalt in-place. It's heating elements produce intense infrared wavelengths that are directed into the asphalt surface. When the asphalt gets over 300 degrees it can be reworked, allowing new asphalt to be added, the surface leveled and rolled.


  • Pot hole and alligator crack repair (see example below)

  • Eliminate depressions or water holes ("Bird Baths")

  • Install  new speed bumps Blend new asphalt without sawing Restore utility service cuts Repair paver seams

  • Raise areas or repair around manholes & storm drains


  • More convenient: because you only need the infrared truck & a roller there is less disruption to your your business.

  • Higher quality: because the surface is heated to over 300 degrees there are no new cold joints or sticky black goo between the old pavement & the new patch.

  • Faster: depending on air temperature one 6 ft  x 8 ft patch can can be completed in 10 to 20 minutes. The old method, involving sawing, digging out, hauling away and putting back new can take a day.

  • Lower cost: Because it is much faster, less equipment & people are involved, the cost is usually substantially lower.


  • Only use of indirect fired infrared units will be allowed. Direct flames are not allowed.

  • The asphalt must be heated to a minimum depth of 2 inches At least 3 cubic feet of new asphalt, that has had it's heat maintained at usable temperature, to be spread out uniformly on the surface of each 6 ft by 8 ft patch.

  • A minimum of a 1 ton vibratory roller required to roll the leveled patch.

Our infrared process: click on picture to enlarge

Asphalt Problems

Pot Hole

Alligatored Area

Manhole Problem

Pot hole

Alligatored area

Manhole problem

Steps we take in the infrared asphalt patching process.

Infrared Unit

Our infrared unit

Heating and Surface

Initial Raking

Preparing Fresh Asphalt

Heating the surface

Initial raking

Preparing fresh asphalt

Placing Fresh Asphalt

Final Raking

Vibratory Rolling

Placing fresh asphalt

Final raking

Vibratory rolling

Finished Patches

"Gooy" Edge Traditional Patch

Our Infrared Patch

Traditional "Skin"patch

"Gooy" edge traditional patch

Our infrared patch

Traditional "skin" patch

Our Infrared Patch

Infrared Patch

Our infrared patch

Our infrared patch




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