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US 12,215,059 B2Granted
Activation of ground granulated blast furnace slag
AssigneeSika Technology AG
InventorsLissa Dupouy, Maxime Liard, Lolita Hauguel, Didier Lootens
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Abstract
An improved mineral binder composition including: a mineral binder including at least 30 weight-% slag, based on the weight of the mineral binder, an activator for the hydration of the slag consisting of or comprising calcium hydroxide and a co-activator consisting of or including at least one salt selected from the group consisting of lithium carbonate, lithium sulfate and sodium carbonate.
Claims9
A mineral binder composition comprising:
- a mineral binder comprising 36-65 weight-% of slag and 35-64 weight-% of Portland cement, based on the weight of the mineral binder,
- an activator for the hydration of the slag comprising calcium hydroxide and
- a co-activator comprising at least one salt selected from the group consisting of lithium carbonate, lithium sulfate and sodium carbonate,
- wherein the activator is present in an amount in a range of 0.5-3.0 weight-% based on the weight of the mineral binder,
- wherein the co-activator is present in an amount in a range of 0.16-0.8 weight-% based on the weight of the mineral binder, and
- wherein a weight-ratio of activator to co-activator is 10:1 to 1.1:1.
3 more elements
Dependencies are inferred from the claim text.