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US 12,735,356 B2Granted
Chemical analogs of carbonic anhydrase for concrete repair
AssigneeWorcester Polytechnic Institute
InventorsSuzanne F. Scarlata, Ronald L. Grimm, Nima Rahbar, Rebecca Gilchrist
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Abstract
Methods and compositions are described for concrete repair using a non-naturally occurring or a synthetic catalyst. The catalyst includes an aromatic hydrocarbon having an active zinc ion configured to facilitate interaction between carbon dioxide and water and to precipitate concrete repairing calcium carbonate crystals. The catalyst is an analog of zinc cyclen, zinc and an indole-based molecule, and zinc tris(2-pyridylmethyl)amine (TPA).
Claims12
A non-naturally occurring catalyst for concrete repair comprising:
- an aromatic hydrocarbon having an active zinc ion configured to facilitate interaction between carbon dioxide and water and to precipitate concrete repairing calcium carbonate crystals;
- and
- a source of calcium ions,
- wherein the catalyst is at least one selected from:
- zinc cyclen, zinc and an indole molecule, and zinc tris(2-pyridylmethyl)amine (TPA).
2 more elements
Dependencies are inferred from the claim text.