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Canadian Standards Association
Precast concrete — Materials and construction
November 2009
B.3.1.3
If anchors or other structural items shown on the precast manufacturer’s reviewed drawings cannot be
accommodated, the general contractor shall obtain approval for any modifications from both the owner
and the precast manufacturer to ensure the required structural adequacy of the hardware.
B.3.2 Plant hardware
B.3.2.1
B.3.2.1.1
All plant hardware necessary for connecting precast elements shall be supplied by the precast
manufacturer. Plant hardware that is cast into precast concrete elements at the plant shall not be modified
by the general contractor at the site.
B.3.2.1.2
Plant hardware or inserts intended to support a force of more than 500 N that are shown on the contract
drawings or described in the specifications shall be supplied by the trade in question, installed by the
precast concrete manufacturer, and shown on the reviewed shop drawings.
Connections that are required for the work of other trades and result in forces of less than 500 N shall be
installed at the site by the trade in question in accordance with
Clauses B.3.2.3
and
B.4.2
.
B.3.2.2
Other plant hardware to be placed by the precast manufacturer (e.g., dovetail slots for masonry anchors
or inserts for flashings) shall be specified by the owner. The anchors or the flashings shall be supplied by
the respective trades. Specially manufactured hardware shall be supplied by the trade requiring it.
Hardware shall be sealed to exclude concrete and shall have suitable lugs for fastening to the forms.
B.3.2.3
Installation of inserts and fastenings by explosive-actuated or power-driven tools shall be allowed only
where such installation will not damage the structural integrity of the elements by being too close to
reinforcement or tendons and where such installation will not mar the concrete finish by spalling or
chipping.
B.3.3 Installation hardware
Installation hardware shall be supplied by the precast manufacturer when it is used in the connections or is
an integral part of the precast installation.
B.3.4 Other materials
B.3.4.1
Temporary bracing stays and guy wires for supporting precast elements shall be considered installation
equipment and be supplied by the precast manufacturer. Inserts or connections for such equipment may
be either general contractor’s hardware or plant hardware and shall be treated accordingly.
B.3.4.2
Sealant, backer rod, and insulation specified for joints between precast concrete wall panels shall be
supplied and installed by the precast manufacturer.
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