Rapid-hardening admixture and method for producing same
US10829416B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Mar 31, 2017 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Jul 3, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides a rapid-hardening admixture for accelerating hardening of a cement composition and a method for producing the same. The rapid-hardening admixture includes calcium aluminate, inorganic sulfate, and a setting modifier, in which the calcium aluminate has an average particle diameter in a range of 8 μm to 100 μm, and the setting modifier has an average particle diameter of 5 μm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.