How to Anchor Bolts, Railings and Rebar in Concrete

How to Anchor Bolts, Railings and Rebar in Concrete


Anchoring Bolts, Railings and Rebar in
Concrete with Anchoring Epoxy. Anchoring handrails or securing any object to
concrete or masonry using threaded rods, rebar, bolts or dowels requires a
high-strength, permanent bond, especially applications that will be subjected to
heavy loads or vibration. Depending on your specific anchoring application,
QUIKRETE manufacturers an anchoring epoxy that will fit your project
requirements. QUIKRETE FastSet Anchoring Epoxy is a one hundred percent
solids, two-component epoxy in a single cartridge with a working time of about
five minutes. FastSet Anchoring Epoxy’s non-sag characteristics make it ideal
for both vertical and horizontal use. QUIKRETE high-strength anchoring epoxy
is also a one hundred percent solids, two-component epoxy in a single
cartridge, but its extended working time makes it particularly suited for
applications where multiple railings must be set. High-strength epoxy also has a pullout
strength of over 30,000 PSI, making it ideal for heavy-duty applications.
QUIKRETE anchoring epoxies have a cure time of just two hours for FastSet
anchoring epoxy and three hours for high strength anchoring epoxy. First, drill a
hole a sixteenth of an inch to a quarter of an inch larger than the diameter of
the threaded rod or railing you are setting. The hole depth should be a
minimum of four and a half times the diameter of the bolt so half inch
threaded rod would require a hole depth of 2 and a quarter inches increasing the
depth of the hole significantly increases the tension load that the
anchored rod can withstand. After you have drilled the hole, blow out the dust from the bottom of the
hole. Cans of compressed air work well for this task. Then, use a nylon brush to
remove any remaining debris from the hole, rotating the brush a quarter of a
turn as its removed from the hole. After brushing, use the compressed air to
remove any remaining dust. Once the hole is properly prepared, insert the anchoring epoxy cartridge
into a caulk gun. It is highly recommended that a high
quality, high strength dispensing gun be used because of the significant amount
of force required to dispense the two-part epoxy through the static mixer
nozzle. Then, remove the plastic cap from the tip of the cartridge. This should be easily accomplished with
your fingertips, but pliers may be necessary. Dispense a small amount of epoxy into a
disposable container, until you get an even flow of both the black and white
material. Then attach the static mixer nozzle on to the cartridge and dispense
enough epoxy until a consistent gray color is achieved, with no streaks. Place
the tip of the dispensing nozzle into the bottom of the hole and fill the hole
about five eighths full, while slowly withdrawing the nozzle. Then, insert the
threaded rod or rebar to the bottom of the hole, while turning clockwise. Remove
any excess epoxy from around the hole with a putty knife or a piece of
cardboard. Leave the anchor undisturbed, until the Cure time has passed. QUIKRETE anchoring epoxies have a
unique two compartment plastic cartridge that is completely discharged when the
cartridge plunger is dispensed halfway. Upon completion of your anchoring
project, simply remove and discard the static mixer nozzle and replace the
cartridge cap. QUIKRETE anchoring epoxies can be stored for up to two years.

Leave a Reply

Your email address will not be published. Required fields are marked *