Zero slump - loss superplasticizer
AssigneeMapei S.P.A.
InventorsTiziano Cerulli, Paolo Clemente, Mario Collepardi, Giorgio Ferrari, Pasquale Zaffaroni
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Abstract
A superplasticizing additive for concrete and other cementitious mixes with high retention of workability (low "slump loss") and low air-entraining effect, is made by terpolymers of a) (meth)acrylic acid and its salts, b)polyethyleneglycolmonomethylether-(meth)acrylate and c) polypropyleneglycol-di(meth)acrylate.
Claims6
Superplasticizing additive for concrete and other cementitious mixes with high retention of workability and low air-entraining effect, comprising terpolymers of the following mixture of monomers respectively having formulas IV, V and VI ##STR10## where Z=H, Na, Li, 1/2Ca and X is H or CH.sub.3 ;
- ##STR11## where W=--(--CH.sub.2 --CH.sub.2 --O--).sub.n --CH.sub.3, n is an integer from 8 to 50 and X is H or CH.sub.3 ;
- ##STR12## where ##STR13## and m is an integer from 2 and 50.
Dependencies are inferred from the claim text.