Mortar or concrete composition
US6878200B2 · kind B2 · utility
2Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2004 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Mar 3, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/343
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a cold-curing mortar or concrete composition comprising calcareous and siliceous materials as predominant components, 0.3-2.5 wt % based on the calcareous material of a silicone oil having formula (1) is added. R is C3-12 alkyl, R′ is C1-4 alkyl, y is such an integer that the number of R is 5-50 mol % of the total number of substituent groups directly attached to silicon atoms in a molecule, z is an integer of 0-5, and 3≦x+y+z≦30. The set composition is improved in water repellency without incurring a drop of strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.