2.1.3.3
Water-Reducing or Retarding Admixture
a. Water-Reducing or Retarding Admixtures: ASTM C 494/C 494M, Type A,
B, or D, except that the 6-month and 1-year compressive strength tests
are waived.
b. High-Range Water Reducing Admixture: ASTM C 494/C 494M, Type F or
G except that the 6-month and 1-year strength requirements shall be
waived. The admixture may be used only when approved by the
Contracting Officer, such approval being contingent upon particular
mixture control as described in the Contractor's Quality Control Plan.
2.1.3.4
[Other Chemical Admixtures
**************************************************************************
NOTE: Use this paragraph when the optional
sentences in paragraph SLUMP is used.
**************************************************************************
Other chemical admixtures for use in producing flowing concrete shall
comply with ASTM C 1017/C 1017M, Type 1 or 2. These admixture shall be
used only for concrete listed in paragraph SLUMP.]
2.1.4
Curing Materials
2.1.4.1
Impervious-Sheet Curing Materials
Impervious-sheet curing materials shall conform to ASTM C 171, type
optional, except polyethylene film shall not be used.
2.1.4.2
Membrane-Forming Curing Compound
The membrane-forming curing compound shall conform to ASTM C 309, Type 1-D
or 2, except a styrene acrylate or chlorinated rubber compound meeting
Class B requirements shall be used for surfaces that are to be painted or
are to receive bituminous roofing, or waterproofing, or floors that are to
receive adhesive applications of resilient flooring. The curing compound
selected shall be compatible with any subsequent paint, roofing, coating,
or flooring specified. Nonpigmented compound shall contain a fugitive dye
and shall have the reflective requirements in ASTM C 309 waived.
2.1.4.3
Burlap
Burlap used for curing shall conform to COE CRD-C 318.
2.1.5
Water
Water for mixing and curing shall be fresh, clean, potable, and free of
injurious amounts of oil, acid, salt, or alkali, except that nonpotable
water may be used if it meets the requirements of COE CRD-C 400.
2.1.6
Nonshrink Grout
Nonshrink grout shall conform to ASTM C 1107 and shall be a commercial
formulation suitable for the application proposed.
2.1.7
Abrasive Aggregates
Fifty-five percent, minimum, aluminum oxide or silicon-dioxide abrasive
SECTION 03301A
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