1. Rationale
A new category, Type S, needs to be added to C 494 for those admixtures that do not impact water reduction, strength, or set, but provide another performance benefit to concrete. By complying to this new class, users will be assured that the new admixture will have no negative impact on standard concrete properties now cited in C 494.
Keywords
accelerating; chemical admixtures; concrete; physical requirements; retarding; testing; water reducing; ICS Number Code 91.100.30; 91.100.30
Citing ASTM Standards
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