ASTM D 1190 or ASTM C 920, Type M, Class 25, Use T.
2.2.12.2
Vertical Surfaces Greater Than 3 Percent Slope
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NOTE: Specify ASTM C 920 for vertical surfaces
greater than 3 percent slope and not subject to jet
fuel, gasoline, fuel oil, etc. For vertical
surfaces greater than 3 percent slope and subject to
jet fuel, specify FS SS-S-200, no sag.
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ASTM C 920, Type M, Grade NS, Class 25, Use T.
[FS SS-S-1614] [FS SS-S-200,
no sag].
2.2.13
Epoxy Bonding Compound
ASTM C 881. Provide Type I for bonding hardened concrete to hardened
concrete; Type II for bonding freshly mixed concrete to hardened concrete;
and Type III as a binder in epoxy mortar or concrete, or for use in bonding
skid-resistant materials to hardened concrete. Provide Grade 1 or 2 for
horizontal surfaces and Grade 3 for vertical surfaces. Provide Class A if
placement temperature is below 4 degrees C 40 degrees F; Class B if
placement temperature is between 4 and 16 degrees C 40 and 60 degrees F; or
Class C if placement temperature is above 16 degrees C 60 degrees F.
2.2.14
Dovetail Anchor Slot
Provide preformed metal slot approximately 25 by 25 mm one by one inch
minimum 22 gage galvanized steel. Coordinate size and throat opening with
dovetail anchors. Provide with removable filler material.
PART 3
EXECUTION
3.1
FORMS
a.
ACI 301. [Concrete for footings may be placed in excavations
without forms upon inspection and approval by the Contracting
Officer. Excavation width shall be a minimum of 100 mm 4 inches
greater than indicated.] Set forms mortar-tight and true to line
and grade. Chamfer above grade exposed joints, edges, and
external corners of concrete 0.75 inch 20 mm unless otherwise
indicated. Forms submerged in water shall be watertight.
b.
Provide formwork with clean-out openings to permit inspection and
removal of debris. Formwork shall be gasketed or otherwise
rendered sufficiently tight to prevent leakage of paste or grout
under heavy, high-frequency vibration. Use a release agent that
does not cause surface dusting. Limit reuse of plywood to no more
than three times. Reuse may be further limited by the Contracting
Officer if it is found that the pores of the plywood are clogged
with paste to the degree that the wood does not absorb the air or
the high water-cementitious materials ratio concrete surface.
c.
Patch form tie holes with a nonshrink patching material in
accordance with the manufacturer's recommendations and subject to
approval.
SECTION 03311
Page 28
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