Process for inhibiting corrosion of iron or steel placed in cement products
US3976494A · kind A · utility
10Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1974 |
| Grant date | Aug 24, 1976 |
| Priority date | — |
| Expiry date | Dec 19, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/26
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to a process for inhibiting corrosion of iron or steel such as reinforcing bars etc. placed in cement products such as paste, mortar and concrete containing a chloride which comprises adding a nitrite and a phosphoric ester, a nitrite and a boric ester or a nitrite and a mixture of a phosphoric ester and a boric ester to the cement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.