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1.
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Begin
to clean the crack by removing all loose dirt and chunks of asphalt with
an awl or hook. If there are larger chunks of asphalt you can use a
mallet and chisel to loosen them. (Make sure to wear eye protection.)
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2.
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Use a
broom or a stiff brush to remove small pieces of asphalt and dirt.
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3.
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Then
spray the crack with a garden hose using a spray attachment to remove any
remaining debris. It is important to clean the crack well so that the patching
material will adhere to it.
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4.
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If
there is oil in the crack, use detergent to scrub it out then rinse well.
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5.
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Allow
all surfaces to dry before continuing with the patching procedure.
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6.
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Cracks
that are less than 1/4 inch are generally filled with material that comes in a
can or caulk gun tube. If you are using filler from a caulk container or
tube, squeeze the filler into the crack until it begins to overflow. Then
smooth it out using a metal or plastic scraper. It may be necessary to
repeat this process to ensure that you are filling the crack completely.
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7.
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If the
filler comes in a can, mix the contents well with a clean paint stick.
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8.
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Scoop
some of the material out using a scraper and push it into the crack.
Repeat this until the crack is overflowing and smooth the surface with
the scraper. Repeat this process until the crack is completely filled.
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9.
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Cracks
that are larger than 1/2 inch must be filled with asphalt cold-patch which comes in
bags or cans. Mix your material as the manufacturer recommends, and pour
this material into the crack.
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10.
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Cover
the patch with some sand to keep the compound from sticking. Tamp the
overfilled crack with a 4x4 post repeatedly until it is level with the
rest of your driveway.
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11.
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If
you are filling a large crack you can tamp it by covering the area with
some sand and a large piece of plywood. Then, drive over the plywood with
your car a few times so that it becomes level with the rest of your
driveway.
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12.
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Allow
the crack filler to dry completely. This may take 12 hours or more.
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be sure that the
temperature is above 50º to ensure that the filler seals properly.
be sure that
you will have dry weather over the next couple days so that your filler dries
properly.
