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CRACKFILLING
Single Cracks: Single cracks may be caused by numerous pavement failures such as “paver joints” which are a result of a weak seam or poor bond between two paver passes, or expansion and contraction of the subbase beneath the pavement.
Reflection Cracks: These cracks reflect the crack pattern in the pavement structure underneath.
Recommendation: Any single crack that has a width of 1/8” or wider should be filled with a crackfill that has expansion and contraction qualities. It may be wise to ignore any cracks less than 1/8”.
CUT OUT PATCHING OF DETERIORATED AREAS
Alligatored areas and potholes: Alligatored or deteriorated areas of blacktop may be caused by such things as an initial installation of pavement which was too thin, a weak stone base under the pavement, or a soft subbase.
Recommendation: Cut out deteriorated areas as geometrically as possible to a depth of 3” or 4” if needed. Then provide a full-depth blacktop patch, sealing the outside edge to prohibit water infiltration.
SEALCOATING
Sealcoating, we feel, is much cosmetic as it is a preventive measure of maintaining your pavement.
Sealer is a mixture of coal tar, sand and water, and does a good job in sealing narrow cracks, gives a non-skid resistance to pavement, repels gasoline and oil, and provides a rich black finish adding a nice contrast to surrounding buildings and landscape. We recommend sealer to be used on a good, sound pavement unless it is being used for aesthetic purposes only.
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