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US 8,221,543 B2Granted
Solidification and hardening accelerator for hydraulic binders and process for its preparation
AssigneeSika Technology AG
InventorsHeinz Schürch, Franz Wombacher, Benedikt Lindlar, Didier Lootens, Robert Flatt
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Abstract
The present invention relates to a fluoride-free solidification and hardening accelerator for hydraulic binders, comprising sulfate, aluminum and organic acid, the molar ratio of aluminum to sulfate being less than 0.83.
Claims14
A fluoride-free solidification and hardening accelerator for hydraulic binders, comprising:
- sulfate;
- aluminum;
- and
- from 1 to 16% by weight of organic acid, based on the total weight of the accelerator,
- wherein
- the molar ratio of aluminum to sulfate is less than 0.83, and
- the molar ratio of aluminum to the organic acid is from greater than 0.67 to 4.65.
4 more elements
Dependencies are inferred from the claim text.