Accelerator for hydraulic binding agents with long processing time and very early strength
US9919967B2 · kind B2 · utility
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1References
28Claims
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Key dates
| Filing date | May 20, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | May 20, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/32
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to an accelerator for hydraulic binding agents, comprising at least one phosphoric acid ester of a multivalent alcohol and at least one calcium compound. The accelerator according to the invention is capable of producing a very fast-curing mortar or concrete composition which has a high early strength and, nevertheless, very favorable processing properties and thus allows early dismantling or early loading and does not cause any losses in the final strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.