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US 12,077,472 B2Granted
Concrete admixture
AssigneeSika Technology AG
InventorAna Jimenez
Life of this patent
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Abstract
A defoamed aqueous composition including 5 to 75 weight-% of at least one anionic polymer, 0.05 to 5 weight-% of at least one water insoluble liquid defoamer and 0.005 to 3 weight-% of at least one polysaccharide, based on 100 weight-% of the composition. The composition gives predictable air content in non-air entrained and air-entrained mortar and concrete.
Claims13
An aqueous composition comprising
- 5 to 75 weight-% of at least one anionic polymer that includes an anionic comb-polymer comprising polyalkylene glycol side chains,
- 0.05 to 5 weight-% of at least one water insoluble liquid defoamer,
- 0.005 to 3 weight-% of at least one water soluble polysaccharide, and
- 0.05 to 5 weight-% inorganic nano-particles,
- based on 100 weight-% of the aqueous composition.
2 more elements
Dependencies are inferred from the claim text.