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US 12,012,365 B2Granted
Mitigation of corrosion in carbonated concrete based on low-calcium silicate cement
AssigneeSolidia Technologies, Inc.
InventorsJitendra Jain, Anuj Seth, Vahit Atakan, Ahmet Cuneyt Tas, Sadanada Sahu
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Abstract
The invention provides methods and compositions that prevent, mitigate or delay the onset of corrosion of iron or steel (e.g., plain carbon steel) components used as reinforcement or otherwise at least partially embedded in carbonated concrete composite materials and objects based on carbonatable calcium silicate cement.
Claims16
A carbonated composite material, comprising
- a bonding matrix comprising a plurality of bonding elements;
- and
- a plurality of pores comprising a pore solution having a pH greater than about 9.5,
- wherein each bonding element comprises
- a core, wherein the core comprises of a carbonatable material,
- a first silica-rich layer that at least partially covers some peripheral portion of the core, and
- a second calcium and/or magnesium carbonate-rich layer that at least partially covers some peripheral portion of the first silica-rich layer;
- and
- wherein the carbonated composite material has a compressive strength of 3,500 psi or greater.
6 more elements
Dependencies are inferred from the claim text.