Nonshrink grout for use in setting base plates and machinery shall conform
to ASTM C 1107, Grade [_____], and shall be a commercial formulation
suitable for the application proposed.
2.1.7
Packaged Dry Repair Materials
Packaged dry rapid-hardening cementitious materials for concrete repairs
shall be a commercial formulation conforming to ASTM C 928 requiring only
the addition of water.
2.1.8
Bonding Agents
Bonding agents shall meet the following requirements.
2.1.8.1
Latex Bonding Agent
Latex agents for bonding fresh to hardened concrete shall conform to ASTM C
1059, Type II.
2.1.8.2
Epoxy Resin
Epoxy resins for use in repairs shall conform to ASTM C 881/C 881M, Type V,
Grade I or II.
2.1.9
Surface Retarder
Surface retarder shall conform to COE CRD-C 94.
2.2
MIXTURE PROPORTIONING
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NOTE: See the concrete materials design memorandum
to select the optional cementitious materials.
**************************************************************************
2.2.1
Concrete shall be composed of cementitious materials, water, fine and
coarse aggregates, and admixtures. The cementitious materials shall be
[portland cement], [portland cement in combination with pozzolan],
[portland cement in combination with [_____]], [portland blast-furnace slag
cement] [portland cement in combination with ground granulated
blast-furnace slag] [portland cement in combination with silica fume]
[portland-pozzolan cement]. The admixture shall be an air-entraining
admixture [or an air-entraining admixture plus] [a retarding admixture], [a
WRA], [a HRWRA], [or an accelerating admixture]. A retarding admixture may
be used at the request of the Contractor when approved. No other chemical
admixtures than those listed above shall be used.
2.2.2
Proportioning Responsibility
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NOTE: The last optional sentence should be used if
slow strength gain cementitious materials are to be
used.
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The concrete mixtures will be proportioned by the Contracting Officer.
SECTION 03700
Page 43
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