 Asphalt Patching
Patching is a cost effective way to replace small
sections of severely damaged asphalt, such as potholes or alligator
cracks. A & B Asphalt Maintenance offers three practical types of
patches:
Overlay Patching: This method
is utilized when the underlying base of the asphalt is structurally
sound and is typically used on depressed surfaces, such as low laying
areas that accumulate water. The skin patching process starts first with
cleaning the existing pavement then applying a layer of asphalt tack
(asphalt adhesive), followed by an application of hot-mixed asphalt. The
hot-mixed asphalt is then mechanically compacted with a roller. The
edges of the patch are later sealed with our rubberized joint compound
to lock out moisture and improve overall appearance.
Removal and Replacement: Commonly referred to as “R&R,”
this technique is used for asphalt which has sub-base damage. The
damaged area is squared off, cut out and then excavated to a depth of
two inches to two feet depending on the subsurface conditions. New
aggregate is then added as needed and compacted in preparation for the
new asphalt surface. Finally, hot-mixed asphalt is placed over the
aggregate layer and compacted to match the level of the surrounding
asphalt. All edges are later sealed with our rubberized joint compound.
Mill Patching: At A & B Asphalt
Maintenance, we have been exposed to every type of asphalt
patching. Through many years of trial and error, we have settled on mill
patching as the most economical form of quality patching. With mill
patching, we “mill” out the existing asphalt to a specified depth, with
depends on the severity of existing asphalt damage (this depth varies
between 2-5 inches). After the milling process, the asphalt is removed
from the work area. The work area is then cleaned using blowers and
steel bristle brooms, after which asphalt adhesive is applied to the
entire area. One the adhesive begins to solidify, hot mix asphalt is
installed and raked smooth in the milled out area, then mechanically
compacted until a level grade is achieved. We warranty our mill patches
for one year against reflection cracking for one year after job completion.
Benefits of Asphalt Patching: All of these patching
methods are economical components of an overall pavement maintenance
program. Timely asphalt patching prevents more expensive repairs in
the future. Properly maintaining your asphalt also creates a safer
work environment, which leads to fewer accidents, thus lowering
ownership liability.
Home Owner
Tip: please beware of infrared patching,
you will not be happy.
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