Apparatus for delivering a rapidly setting composition
US5320424A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1992 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | Dec 22, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F35/831
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to apparatus for producing and delivering a rapidly setting composition and method of delivering a rapid setting cementitious grout. The rapidly setting composition comprises a first interactive component and a second interactive component. The first component comprises a retarded cementitious grout and the second is a gelling agent therefor, the rate of addition of the gelling agent being selected so as to control the rate of set of the deliverable composition. The particular apparatus includes means for supplying the gelling agent through an auxiliary pipeline to the main supply pipeline and means for monitoring the flow rate of the first component through the main supply line, means for monitoring the flow rate of the gelling agent through the auxiliary supply line, and means for adjusting the flow rate of the gelling agent to reduce difference between the monitored value and a reference value. The method is characterized by the steps of monitoring the flow rate of the grout through the main supply pipeline and monitoring the flow rate of the gelling agent through the auxiliary pipeline and by comparing the monitored flow rate of the gelling agent with a r…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.