Petro-tac is for use over cracks in a flexible overlay over an existing crack or joint. The cracks occur directly over the underlying cracks or joints. “Joint reflection cracking” specifically refers to reflection cracks arising from underlying PCC pavement joint movement and can also occur over existing HMA pavement cracks, cement or lime stabilized base, etc. For joint reflection cracking, this is movement of the PCC slab beneath the HMA surface because of thermal and moisture changes. CFG, Inc. offers peel-n-stick asphalt fabrics for repair of reflective cracking on cement or asphalt surfaces.
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