Providing freezing and thawing resistance to cementitious compositions
US7288147B2 · kind B2 · utility
22Cited by
29References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2005 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Jun 14, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/29
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved freeze-thaw durability wet cast cementitious composition is provided that uses in-situ production of gas by gas generating additives and optionally polymeric microspheres that are blended directly into the mixture. The gas generating additives and the polymeric microspheres provide void spaces in the material matrix, and such void spaces act to increase freeze-thaw durability of the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.