Method of preparing kneaded compositions
US4431310A · kind A · utility
4Cited by
4References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 30, 1981 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Nov 30, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28C5/003
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In the preparation of a cement paste about 30 to 76% of the total water is added to the cement to form a funicular state, capillary state or slurry state, and the resulting mixture is kneaded so as to reduce the coagulated lumps of cement. Then the remaining quantity of water is added and the composition or mixture is kneaded again. Sand and/or gravel may be incorporated after the firstly kneaded mixture. The resulting cement paste, mortar or green concrete exhibits a small percentage of bleeding water and products prepared therefrom have a high compression strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.