Process for producing reinforced cementitious compositions and the products produced thereby
US4975396A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1989 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Mar 16, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing reinforced cementitious compositions in which the following constituents are mixed in the aqueous phase in the following order: about 35-55 parts by weight of water mixed with about 3-12 parts of a polymer, by weight of dry polymer; up to about 5 parts of a water-reducing auxiliary agent and/or a liquifying agent; from about 15-30 parts of metakaolin; from about 50-120 parts of silica sand; and about 100 parts of cement. Continuous mixing is maintained until a homogeneous, thixotropic paste is obtained. Then between 2 and 15% by weight of alkaline-resistant glass fibers, relative to the weight of the paste, is introduced into the paste. The product produced by this method is particularly suitable for use as a mortar or paste which may be easily sprayed upon vertical surfaces and as hydraulic concretes, resistant to the effects of weather and aging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.