Exposed aggregate finishing method for concrete
US4205040A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 22, 1975 |
| Grant date | May 27, 1980 |
| Priority date | — |
| Expiry date | Oct 22, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28B7/362
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An exposed aggregate finishing method for concrete. The method comprises coating the inside faces of a form for concrete with a cement setting retarder, drying, coating the dried faces with a synthetic organic polymer coating material which is soluble in an aqueous alkaline solution of cement, but is insoluble in water; and drying the coated faces. Alternatively, the method may be carried out by coating the inside faces of the form for concrete with the mixture of the cement setting retarder and the organic polymer coating material and drying the coated faces. Concrete is thereafter placed in the concrete form, the form removed and the surface of the molded concrete washed to make the surface rough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.