Step 1: Evaluating Pavement
should be performed on pavements that are in good condition. That is
defined as a pavement with a sound base and exhibits distress in the
form of thermal or working cracks with greater than 1/8 inch movement.
The procedure generally consists of sealing transverse cracks spaced 20
feet apart or more in order to prevent moisture from entering and
deteriorating the subbase and incompressible material from interfering
with thermal movement. See the Crafco Application Instructions for your
chosen sealant to get specific directions on preparation and
application. Generally, all crack seal operations include mechanically
widening the crack. The expected life of this procedure is 5 to 9 years
in most cases.
Performance Crack Filling:
This procedure consists of
filling cracks with low (<1/8 inch) movement in order to stop
moisture from penetrating to the subbase of the pavement. If moisture is
not checked, catastrophic pavement failure such as potholes will form.
Another reason for crack filling is to stop crack raveling. Crack
filling is a very cost-effective method of pavement repair that will add
years to its life. Crack fill pavements that are in fair to poor
condition on a regular basis to maintain or slightly improve their
condition. A life of 6 to 8 years can be expected in most instances.
The sealing of concrete pavement joints
is required to stop moisture from entering and deteriorating the subbase
of the pavement. The most cost-effective method of ensuring optimum
performance of a PCC pavement is by constructing a sound joint seal
system that will last. For detailed information see the Crafco joint
seal Product Data Sheet and Application Instructions.
STEP TWO / THREE
SEALANT USAGE CALCULATOR
For further information, please contact:
Denver Industrial Sales &
850 South Lipan Street
Denver, CO 80223
Ph. (303) 935-2485 · Fax (303) 935-6787
Toll Free (877) 935-2485