© 2010 Utilicor Technologies Inc.
21
Core Reinstatement Procedure with Utilibond™
(1)
The core, or coupon, removed from the
pavement with the rotary cutter can be
reinstated as a permanent repair using
Utilibond™, after the hole has been properly
backfilled and compacted. The first step of
reinstating is to properly prepare/clean the
cored hole. Wipe all cut surfaces of the core
and walls of the hole with a clean, damp
cloth to remove all loose cutting debris and
particulate from the cut surface. Proper
bonding depends on achieving a clean
surface for the bonding agent to adhere to.
(2)
Line the bottom of the hole with a 1"-2" bed
of pea gravel. Because the pea gravel is
added fill that was not present before, the
backfill should be left approximately 1” to 2”
lower than the base of the pavement.
Undercut the bottom of the existing
pavement in the hole by about 1" all around
to allow the pea gravel to fill under the
pavement. Utilibond™ will impregnate the
pea gravel and create a solid base / plug for
the core to bond to.
(3)
Dry fit the core by using the core puller or
hoist to lower the core back into the hole
and check for level and flushness with the
existing pavement. Adjust the pea gravel
until the core is level with the surrounding
pavement, and approximately 1/8" below
the surface of the surrounding pavement.
This process is referred to as "dry fitting" the
core. This is an essential step to a successful
core reinstatement.