Microstructured carbonatable calcium silicate clinkers and methods thereof
US-9926235-B2 · Mar 27, 2018 · US
Compositions and methods for controling setting of carbonatable calcium silicate cements containing hydrating materials
US10766819B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10766819-B2 |
| Application number | US-201816229262-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 21, 2018 |
| Priority date | Oct 3, 2014 |
| Publication date | Sep 8, 2020 |
| Grant date | Sep 8, 2020 |
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- Title
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Abstract
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The invention provides compositions and methods for controlling setting of carbonatable calcium silicate compositions that are contaminated with hydrating materials. These carbonatable calcium silicate cements are suitable for use as non-hydraulic cement that hardens by a carbonation process and may be applied in a variety of concrete components in the infrastructure, construction, pavement and landscaping industries.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for suppressing premature setting of a carbonateable calcium silicate composition comprising one or more hydraulic contaminants, comprising adding one or more set-retarding or hydration-controlling compounds or admixtures to a carbonateable calcium silicate composition or a precursor composition thereof. 2. The method of claim 1 , wherein the set-retarding or hydration-controlling compounds or admixtures comprise one or more of organic compounds. 3. The method of claim 2 , wherein the one or more of organic compounds are selected from lignosulfonates, hydroxycarboxylic acid and salts thereof, phosphonates, and sugars. 4. The method of claim 1 , wherein the set-retarding or hydration-controlling compounds or admixtures comprise one or more of inorganic compounds. 5. The method of claim 4 , wherein the one or more of inorganic compounds are selected from borates and phosphates. 6. The method of claim 1 , wherein the set-retarding or hydration-controlling compounds or admixtures comprise one or more of organic compounds and one or more of inorganic compounds. 7. The method of claim 1 , wherein the set-retarding compound or admixture comprises a sugar-based compound. 8. The method of claim 1 , wherein the set-retarding compound or admixture comprises a gluconate-based compound. 9. The method of claim 1 , wherein the set-retarding compound or admixture comprises a sugar-based compound and a gluconate-based compound. 10. The method of claim 1 , wherein the carbonateable calcium silicate composition comprising a hydrating phase of CaO. 11. The method of claim 1 , wherein the carbonateable calcium silicate composition comprising a contamination from Ordinary Portland Cement. 12. A method for accelerating the drying rate or the curing rate of a carbonatable calcium silicate cement comprising one or more hydraulic contaminants, comprising adding one or more set-retarding or hydration-controlling compounds or admixtures to a carbonateable calcium silicate composition or a precursor composition thereof.
Assignees
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Classifications
- C04B28/10Primary
Lime cements or magnesium oxide cements · CPC title
Aspects relating to the protection of the environment · CPC title
Carbon dioxide sequestration · CPC title
- C04B28/24Primary
containing alkyl, ammonium or metal silicates; containing silica sols {(reaction mixtures resulting in mineral polymers C04B28/006; polymeric reaction products of alkali metal silicates with isocyanates C08G18/3895)} · CPC title
Carbon capture and storage [CCS] · CPC title
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- What does patent US10766819B2 cover?
- The invention provides compositions and methods for controlling setting of carbonatable calcium silicate compositions that are contaminated with hydrating materials. These carbonatable calcium silicate cements are suitable for use as non-hydraulic cement that hardens by a carbonation process and may be applied in a variety of concrete components in the infrastructure, construction, pavement and…
- Who is the assignee on this patent?
- Solidia Technologies Inc, Solidia Tech Ltd
- What technology area does this patent fall under?
- Primary CPC classification C04B28/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 08 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).