EXPERT ADVICE
Sealcoating
• Assessment of the overall condition and integrity of the
asphalt pavement, i.e. the age, surface deterioration, any
base or sub-base issues, and the drainage of the asphalt
pavement.
• New asphalt installations, done in late fall of the previous
year or early spring of the current year shall be checked
if they have cured sufficiently for sealcoatings. For the
optimum performance of the sealcoating, it is essential
that the asphalt pavement be allowed to age sufficiently to
rid of its surface oils. Perform the “water-break-free-test”
by casting a gallon of clean water out over he surface.
If the water sheets out without crawling or showing oil
rings, the surface is ready for sealcoating. If the asphalt
fails this test, it shall be allowed additional time for cure
and re-tested.
• Surface profile of new asphalt installations. Observe the
surface profile of the new asphalt closely to make sure that
the asphalt does not have open, rough or “boney” appear-
ance, which may be indicative of paving defects; either
hot mix asphalt was not sufficiently hot or poor compac-
tion, during paving. Report them to the property owner
Continued from page 20
Make sure that you include power washing the heavily salted
properties. The embedded salt in the profile of such asphalt
surfaces cannot be removed simply by brushing or blowing. It
is imperative that salt be removed prior to sealcoating to avoid
premature sealer wear and failure.
Carry over work from the last season. Commonly some
spring work may entail the jobs left over from the previous
year that were not completed due to early winter setting or
other time constraints. Before sending out the crew, you are
advised to inspect the property, for any new surface defects
(cracks, potholing, etc.) that may have developed over the
winter months, which may require repair prior to sealcoating.
Hopefully, you have allowed for such contingencies in your
bid proposal to recover the costs. If not, then it is a lesson for
the future.
New Projects – Inspection Prior to Bidding. The inspection
should include the following:
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Continued on page 24
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