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US 2022/0064066 A1Published application
Mitigation of alkali-silica reaction in concrete using readily-soluble chemical additives
AssigneesThe Regents of the University of California, Yara International Asa, BASF SE
InventorsGaurav Sant, Gabriel Falzone, Tandre Oey, Wolfram Franke, Paul Seiler, Erika La Plante
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Abstract
A manufacturing method includes: (1) incorporating at least one soluble, calcium, magnesium, or other divalent cation-containing additive into a concrete mixture including aggregates prone to alkali-silica reaction; and (2) curing the concrete mixture to form a concrete product.
Claims23
1-24. (canceled)
A method of manufacture, the method comprising:
- incorporating at least one divalent cation-containing additive into a concrete mixture including aggregates prone to alkali-silica reaction, wherein the divalent cation-containing additive suppresses alkali-silica reaction of the aggregates;
- and
- curing the concrete mixture to form a concrete product, including formation of divalent cation-containing reaction products, at an interface between reactive aggregates and a cementitious pore solution within the concrete mixture.
A concrete product, comprising:
- a binder;
- aggregates dispersed within the binder;
- and a calcium-containing interfacial layer at least partially covering the aggregates.
A concrete product, comprising:
- a binder;
- aggregates dispersed within the binder;
- and
- a magnesium-containing interfacial layer at least partially covering the aggregates.
1 more element
Dependencies are inferred from the claim text.