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1.
How is Perma-Patch® different from a standard cold patch?
2. Why should I use Perma-Patch®
for my patching requirements instead of hot mix asphalt?
3. Who uses Perma-Patch®, and how
long has it been used?
4. Why do utility contractors find
Perma-Patch® to be a superior patch material?
5. Once Perma-Patch® is placed,
how long must we avoid driving over the Perma-Patched area?
6. At a later date, can we resurface
over areas repaired with Perma-Patch®?
4. Why do utility contractors find Perma-Patch® to be a superior
patch
material?
Experience shows that wherever repairs to utility cuts, potholes, or roads
are made using hot mix asphalt, within three months to three years after
a standard repair, there will be a gradual increase in the separation
of the old paving from the new paving. This separation is due to the difference
in the thermal coefficient of expansion between dissimilar materials.
This separation allows water to penetrate under the paved area and with
the effects of the perma-frost, this leads not only to gradual disintegration
of the repaired area, but extends to the street base up to 500 feet away.
The only solution to this observable problem is to substitute Perma-Patch®
for hot mix asphalt. Perma-Patch® eliminates this separation, because
underlying the hard surface layer of Perma-Patch® is a pliable layer
of Perma-Patch® acting as a large expansion joint constantly sealing
the interface between the surrounding paving and the new Perma-Patch®
repair material.
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