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Conventional vs. Infrared (Old vs. New)

 

The first step in the restoration process is to heat the asphalt sufficiently so that it will soften to the necessary depth. the heating must be carefully controlled to prevent damage to any of the asphalt. The only practical means to accomplishing this is through the use of Infra-red Heat. The characteristics of an Infra-red ray are such that they are absorbed into an opaque solid matter, in this case the asphalt pavement. As the rays are absorbed the asphalt is heated without the surface burning. Conversely, attempting to heat asphalt with an open flame, hot iron, or heated air (convection heat) will burn the asphalt long before it is adequately softened. Unique infrared converters are extremely efficient generators of Infra-red energy. They are designed to concentrate the infrared hear directly into the asphalt while venting away excess convection heat. In comparison with a cold/hot patch, even when done correctly, the finished repair is left with a cold seam where hot asphalt from an Infra-red meets the existing pavement. With a cold patch this cold seam is the "weak link" and it is where water will eventually re-enter the repair and cause it to fail. Infra-red is a higher cost fix, but is a proper fix that in time will save your asphalt with fewer repairs and a cheaper overall cost.


 

Conventional

Infrared

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OVERALL VIEW OF POTHOLE

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OVERALL VIEW OF POTHOLE

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SQUARE CUT EXCAVATED POTHOLE

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HEATED AND SOFTENED SURFACE

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SIDE VIEW OF POTHOLE

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SIDE VIEW OF POTHOLE

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REPAIRED BY CONVENTIONAL METHOD

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REPAIRED BY INFRARED / THERMAL BONDING

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