Admixtures to be used, when required or permitted, shall conform to the
appropriate specification listed. Admixtures shall meet the requirements
specified in Section [03300A CAST-IN-PLACE STRUCTURAL CONCRETE][03301A
CAST-IN-PLACE STRUCTURAL CONCRETE FOR CIVIL WORKS][03307 CONCRETE FOR MINOR
STRUCTURES].
2.1.2.1
Grout Fluidifier
ASTM C 937.
2.1.3
Aggregate
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NOTE: Aggregate quality requirements shall be
selected based on exposure and environmental
conditions, and shall consider quality issues and
potential material reactivity for the locality where
the work is to be performed.
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NOTE: The maximum practical size of coarse aggregate
should be used. The maximum size aggregate should
be based on depth of concrete removal, as well as
reinforcing and form clearances.
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Aggregates shall meet the quality and grading requirements of [ASTM C 33
Class Designations 4M or better] [or] [state highway department
specification] and the following specific requirements. For material
passing No. 200 sieve provide a non-plastic material composed of a minimum
of 75 percent limestone dust, talc or silica inert filler. Provide dry
aggregate.
a.
For epoxy concrete:
ASTM C 33, [maximum size [_____][13 mm (1/2
inch)][1/2 inch].]
b.
For epoxy mortar: ASTM C 144, [maximum size [_____ mm][_____ inch
].] [No. 8 sieve] [No. 40 sieve] [[_____] sieve].
c.
For dry-pack mortar:
ASTM C 144, maximum size No. 16 sieve
d.
For polymer-modified concrete: ASTM C 33, Size No. 8.
e.
For polymer-modified mortar: ASTM C 144, [maximum size [_____ mm][
_____ inch].] [No. 8 sieve] [No. 40 sieve] [[_____] sieve].
2.1.4
Water
Water for cleaning, mixing and curing shall be fresh, clean, potable, and
free of injurious amounts of oil, acid, salt, or alkali, except that
non-potable water may be used if it meets the requirements of COE CRD-C 400.
2.1.5
Fiber Reinforcement
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NOTE: For nominal maximum aggregate size less than
40 mm1-1/2 inch, consider using fibers which are
slightly larger than the maximum aggregate size.
SECTION 03931
Page 39
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