Crack repair can save the cost comapre with the road rebuilding. Crack repair can also extend the life of the pavement. I take a good look at the crack on the pavement and whether or not the pavement drainage mechanics are working properly. Significant cracking of the pavement underneath allows water into the base, which in turn accelerates cracking during freeze-thaw times of the year. On the drainage mechanics, I look to see if the pavement is draining properly and not allowing drainage towards foundations, doors, or other undesirable places. If I see either of these things, I recommend a new pavement to cure the issues.
If the pavement has the asphalt crack where just the crack sealing has that cracked glazed pottery look, a sealcoat will merely make everything nice and black again, but the effect will still be there once the crack sealing has been completed. This type of cracked-pottery alligatoring effect has no effect on the structural integrity of the pavement and is merely cosmetic in nature. If cosmetics of the pavement are of significant importance to the home or business owner, I recommend a new pavement.
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