Geopolymer with nanoparticle retardant and method
US10087107B2 · kind B2 · utility
6Cited by
11References
11Claims
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Key dates
| Filing date | Feb 2, 2017 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | May 7, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of controlling the setting time of a geopolymer by coating aluminosilicate particles with nanoparticles to slow the geopolymerization reaction. The coating effectiveness of the nanoparticles may be enhanced by pretreating the aluminosilicate particles with a layer-by-layer assembly of polyelectrolytes. A geopolymer is formed by mixing about 39% to about 66% by weight aluminosilicate source, about 0% to about 40% by weight sand, about 19% to about 33% by weight of alkali activator solution, and about 1% to about 4% nanoparticles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.