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US 12,552,711 B2Granted
Production of wet-cast slag-based concrete products
AssigneeCarbicrete Inc.
InventorMehrdad Mahoutian
Life of this patent
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Abstract
The present description relates to a method of producing a wet-cast slag-based concrete product particularly where the wet-cast slag-based concrete product is partially or completely set inside a mould, pre-conditioned outside of the mould and then cured with carbon dioxide in a curing chamber. The wet-cast slag-based concrete product is optionally reinforced.
Claims20
A method of producing a wet-cast slag-based concrete product comprising steps of:
- providing a slag-based binder, an aggregate, and water;
- mixing the slag-based binder, the aggregate, and the water to produce a non-zero-slump concrete composition comprising a first water to slag-based binder ratio by weight of greater than 0.2;
- casting the non-zero-slump concrete composition by transferring the non-zero-slump concrete composition into a mould;
- setting the non-zero-slump concrete composition within the mould to produce a slag-based intermediate comprising a second water to slag-based binder ratio by weight that is less than the first water to slag-based binder ratio by weight;
- unmolding the slag-based intermediate from the mould;
- after the unmolding of the slag-based intermediate, pre-conditioning the slag-based intermediate to produce a pre-conditioned slag-based intermediate comprising a third water to slag-based binder ratio by weight that is less than the second water to slag-based binder ratio by weight, the pre-conditioning including maintaining a non-zero quantity of water in the pre-conditioned slag-based intermediate;
- and
- curing the pre-conditioned slag-based intermediate by introducing carbon dioxide after the pre-conditioning to produce the wet-cast slag-based concrete product.
5 more elements
A method of producing a reinforced wet-cast slag-based concrete product comprising steps of:
- providing a slag-based binder, an aggregate, and water;
- mixing the slag-based binder, the aggregate, and the water to produce a non-zero-slump concrete composition comprising a first water to slag-based binder ratio by weight of greater than 0.2;
- casting the non-zero-slump concrete composition by transferring the non-zero-slump concrete composition into a mould;
- inserting reinforcement into the mould and into the non-zero-slump concrete composition to obtain a reinforced non-zero-slump concrete composition;
- setting the reinforced non-zero-slump concrete composition within the mould to produce a reinforced slag-based intermediate comprising a second water to slag-based binder ratio by weight that is less than the first water to slag-based binder ratio by weight;
- demoulding the reinforced slag-based intermediate to produce a reinforced demoulded intermediate;
- pre-conditioning the reinforced demoulded intermediate to produce a reinforced pre-conditioned slag-based intermediate comprising a third water to slag-based binder ratio by weight that is less than the second water to slag-based binder ratio by weight, the pre-conditioning including maintaining a non-zero quantity of water in the pre-conditioned slag-based intermediate;
- and
- curing the reinforced pre-conditioned slag-based intermediate by introducing carbon dioxide after the pre-conditioning to produce the reinforced wet-cast slag-based concrete product.
6 more elements
Dependencies are inferred from the claim text.