Concrete composition containing a superfluidifying additive
US5221344A · kind A · utility
4Cited by
3References
9Claims
0Family size
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Inventors
Key dates
| Filing date | May 1, 1992 |
| Grant date | Jun 22, 1993 |
| Priority date | — |
| Expiry date | May 1, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B24/20
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A concrete composition contains hydraulic cement, inerts, water and superfluidifying additive obtained by salifying, in the form of an alkaline metal, alkaline earth metal or ammonium salt, the sulphonated and oxidised products resulting from the reaction between sulphur trioxide and fuel oil deriving from steam cracking. This concrete composition has improved workability characteristics and enables concretes to be obtained generally possessing greater strength and durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.