include the sentence below enclosed with brackets in
these specifications.
NOTE 2: Zinc-coated or epoxy-coated bars shall be
used in bridge decks and other applications where
bars would be subjected to corrosive action.
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Steel bars shall comply with the requirements of [ASTM A 615/A 615M] [ASTM
A 996/A 996M including Supplementary Requirements], or [ASTM A 706/A 706M],
deformed, of the grades, sizes and lengths shown. [If the Grade 300 40
bars shown are unavailable the Contractor may substitute Grade 350 50 or
Grade 400 60 bars of the same size and spacing as indicated for Grade 300 40
bars when authorized.]
2.1.1.1
[Zinc-Coated (Galvanized) Bars
Zinc-coated (galvanized) bars shall comply with the requirements of ASTM A
767/A 767M, Class [_____] coating, galvanized after fabrication.]
2.1.1.2
[Epoxy-Coated Bars
Epoxy-coated steel bars shall comply with the requirements of ASTM A 775/A
775M, including written certifications for coating material and coated
bars, sample of coating material, and 700 g 0.5 pounds of patching
material.]
2.1.1.3
Fabricated Bar Mats
Fabricated bar mats shall comply with the requirements of ASTM A 184/A 184M,
clipped or welded mats, bar sizes and spacings as shown.
2.1.2
Steel Welded Wire Fabric
Steel welded wire fabric shall comply with the requirements of [ASTM A 185
], [ASTM A 497/A 497M] wire sizes and spacings as shown. For wire with a
specified yield strength (fy) exceeding 400 MPa 60,000 psi, fy shall be the
stress corresponding to a strain of 0.35 percent.
2.1.3
Accessories
2.1.3.1
Bar Supports
Bar supports shall comply with the requirements of ACI SP-66. Supports for
bars in concrete with formed surfaces exposed to view or to be painted
shall be plastic-coated wire, stainless steel or precast concrete supports.
Precast concrete supports shall be wedged-shaped, not larger than 90 by
90 mm 3-1/2 by 3-1/2 inches, of thickness equal to that indicated for
concrete cover and have an embedded hooked tie-wire for anchorage. Bar
supports used in precast concrete with formed surfaces exposed to view
shall be the same quality, texture and color as the finish surfaces.
2.1.3.2
Wire Ties
Wire ties shall be 16 gage or heavier black annealed wire. Ties for
epoxy-coated bars shall be vinyl-coated or epoxy-coated. Ties for
zinc-coated bars shall be zinc-coated.
SECTION 03201
Page 9
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