Grouting liquid for injection into a ground
US5549419A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1994 |
| Grant date | Aug 27, 1996 |
| Priority date | — |
| Expiry date | Oct 20, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A suspension-type grouting liquid for injection into a ground includes sodium aluminate having a mol ratio of 10 or more; and slag, wherein the mol ratio of sodium aluminate is defined as molar concentration of Na.sub.2 O/molar concentration of Al.sub.2 O.sub.3. Preferably, the slag is fine grained and has a specific surface area of 8000 cm.sup.2 /g or more. The grouting liquid may further include at least one additional material selected from the group consisting of cement and dispersant. Preferably the cement is fine grained and has a specific surface area of 8000 cm.sup.2 /g or more. The grouting liquid shows high strength of consolidation in use in spite of having a low viscosity and a long gelation time, and shows a long duration of the strength of consolidation. Another embodiment of the grouting liquid includes water glass having a mol ratio of 2.5 or less; and slag, wherein the mol ratio of the water glass is defined as molar concentration of SiO.sub.2 /molar concentration of Na.sub.2 O, and wherein the slag is fine grained and has a specific surface area of 8000 cm.sup.2 /g or more. Yet another embodiment of the grouting liquid includes water glass; sodium aluminate; and s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.