Installing Steel Bar Anchors Into Brick Unit Masonry With Resins
- Procedure code:
- Jacob Weinberger Us Courthouse, San Diego, Ca
- Masonry Accessories
- Last Modified:
INSTALLING STEEL BAR ANCHORS INTO BRICK UNIT MASONRY WITH RESINS
A. This procedure includes guidance on embedding threaded
rods in epoxy or polyester resin in holes drilled into
brick masonry walls to provide anchors for attachment to
hardware connected to the framing of the building.
CAUTION: THIS PROCEDURE CAN DAMAGE AND/OR HAVE AN ADVERSE
EFFECT ON HISTORIC MASONRY IF NOT PLANNED AND IMPLEMENTED
PROPERLY. CONSULT THE REGIONAL HISTORIC PRESERVATION
OFFICER FOR APPROVAL BEFORE PERFORMING THIS TYPE OF WORK
TO ENSURE THAT THE MOST UNOBTRUSIVE RESULTS WILL BE
B. See 01100-07-S for general project guidelines to be
reviewed along with this procedure. These guidelines
cover the following sections:
1. Safety Precautions
2. Historic Structures Precautions
4. Quality Assurance
5. Delivery, Storage and Handling
6. Project/Site Conditions
7. Sequencing and Scheduling
8. General Protection (Surface and Surrounding)
These guidelines should be reviewed prior to performing
this procedure and should be followed, when applicable,
along with recommendations from the Regional Historic
Preservation Officer (RHPO).
A. Abatron, Inc.
B. Sika Corporation
A. Resin: The resin shall be a two-component, structural
epoxy or polyester resin adhesive. The components shall
be pre-measured in separate cartridges.
B. Threaded Rods: Threaded rods shall be sized according to
need and loading requirements. Consult with structural
engineer and Regional Historic Preservation Officer
C. Screen Tube: Screen tubes shall be 7/8 inch diameter,
approximately 28 wire per inch square mesh screen.
D. Mixing Nozzle: The resin components may be automatically
mixed by a nozzle that is secured to the component
A. Electric drill with mixing paddle provided by adhesive
B. Pail in which to hand mix adhesive.
3.01 ERECTION, INSTALLATION, APPLICATION
1. The drill holes should be sized according to the
rod used. Typically, the hole shall be no greater
in diameter than 1/8-inch or 1/4-inch (depending on
the adhesive used) larger than the pin to be
embedded, and ten to fifteen bar diameters deep.
2. Drill shall be non-impact type rotary drill with a
3. Clean holes with high pressure air and a stiff
1. Verify the rod length as appropriate for the depth
with at least 1-1/2" projection. NOTE: Projection
may be more or less depending on use.
2. If using automatic pressure-injection equipment,
resin shall be automatically measured and mixed in
the mixing nozzle.
3. If mixing by hand, mix each component by volume as
directed by manufacturer into clean pail.
Components shall be used straight, without any
additives. Mix thoroughly for time specified by
manufacturer with low-speed drill (400-600 rpm)
fitted with appropriate paddle. Blend until
uniform color is achieved.
4. Place the resin into the screen tube. Completely
fill the screen tube. Begin placement at the end
of the screen and withdraw the nozzle as the screen
5. Insert the screen tube and resin into the hole.
6. Slowly insert the threaded rod into the resin to
the full depth of the hole.
7. Do not disturb the anchor until the adhesive has
cured. Follow manufacturers instructions.
8. No gaps shall be visible between the rod and the
9. Conform with all requirements of the ICBO Research
Report for the product, Manufacturers'
Recommendations, and all applicable Building and
Safety Guidelines. These referenced documents
shall be on the job and referred to when the work
of this Section is underway.
A. Remove spills and excess adhesive with absorbent
material, flush with water.
B. Uncured material can be removed with solvent as
recommended by adhesive manufacturer.
C. Do not allow excess material to cure as cured adhesive
can only be removed mechanically.
END OF SECTION