Max. Water-Cement Ratio
Exposure Condition
(Normal Weight Aggregate)
Concrete intended to be watertight:
(a) Concrete exposed to fresh water
0.50
(b) Concrete exposed to brackish
water or seawater
0.45
Concrete exposed to freezing and thawing
in moist conditions:
(a) Curbs, gutters, guardrails, or thin sections
0.45
(b) Other elements
0.50
(c) In presence of deicing chemicals
0.45
For corrosion protection for reinforced concrete
exposed to deicing salts, brackish water, seawater,
or spray from these sources:
(a) Min. concrete cover per ACI 318M
0.40 (a) Min.
concrete cover per ACI 318
0.40
(b) ACI 318M cover exceeded by 13 mm
0.45 (b) ACI 318
cover exceeded by 0.50 in.
0.45
**************************************************************************
ACI 211.1, ACI 301, and ACI 318M/318RM [and ACI 211.2] [ACI 304.2R] [and] [
ACI 213R] except as otherwise specified. The compressive strength (f'c) of
the concrete for each portion of the structure(s) shall be as indicated
[and as specified below].
f'c
ASTM C 33
[Maximum
(Min. 28-
Maximum
Range
Water-
Day Comp.
Nominal
of
Cement
[Air
Strength)
Aggregate
Slump
Ratio]
Entr.]
Location
(MPa)
(Size No.)
(mm)
(by weight)
(percent)
[All areas]
[_____]
[_____]
[_____]
[_____]
[_____]
[Concrete
exposed
to weather
[30]
[57]
[_____]
[0.50]
[6]
All other
areas
[_____]
[_____]
[_____]
[_____]
[_____]]
[Reinforced
foundation
walls and
footings
[_____]
[_____]
[25-75]
[_____]
[_____]
Plain footings,
caissons, and
substructure
walls
[_____]
[_____]
[25-75]
[_____]
[_____]
SECTION 03300N
Page 19
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