Method and apparatus for preparing and using a cement slurry
US5064292A · kind A · utility
Inventor
Key dates
| Filing date | Sep 19, 1989 |
| Grant date | Nov 12, 1991 |
| Priority date | — |
| Expiry date | Sep 19, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28C5/4268
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a method of preparing, transporting, disposing and distributing a load of cement slurry, especially for highway and similar construction work. This method is particularly adapted to be used to reconstruct old road beds, which already have a surface material thereon, but which surface has deteriorated to such an extent that a new road surface is required. This method and apparatus provide a greatly improved safety means to the construction industry, which heretofore has relied on the "dry cement powder" process, which generates a toxic dust cloud that is harmful to humans, animals and vegetation, to obtain the widely used "cement treated base" for construction or renovation of roads, streets and highways.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.