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US 9,266,775 B2Granted
Binder made of blast-furnace slag
AssigneeSaint-Gobain Weber
InventorsFrank Hesselbarth, Udo Dudda
Life of this patent
Estimating the term…
Abstract
A binder for construction materials containing a ground granulated blast furnace slag and at least one mono-, di- or trivalent metal salt chosen from bismuth, copper, silver or tin salts. The salt is capable of forming, during mixing with said slag, a metal sulfide for which the solubility product KSP, measured at 25° C., is less than 10−10.
Claims19
A binder comprising:
- a ground granulated blast furnace slag and
- at least one mono-, di- or trivalent metal salt selected from the group consisting of bismuth, copper, silver and tin salts,
- wherein the salt is capable of forming, during mixing with said slag, a metal sulfide for which the solubility product KSP, measured at 25° C., is less than 1010.
A concrete or mortar composition, comprising:
- a binder comprising a ground granulated blast furnace slag,
- at least one mono-, di- or trivalent metal salt selected from the group consisting of bismuth, copper, silver and tin salts, and
- at least one selected from the group consisting of sand, an aggregate and a filler.
Dependencies are inferred from the claim text.