Other important uses include controlling water inflow into shafts and tunnels during excavations, pre-grouting of TBM/EPBM tunnel headings, formation of impervious grout curtains to contain pollution by hazardous waste and cut-off walls into alluvial deposits at dam sites.
The Terracol System is a completely water soluble process consisting of two components:
The amount of Terracol Part B - hardener needed ranges from ~10:1 to 5:1 by weight depending on the desired gel time (ie. a 6.6:1 ratio results in an approximate 30 minute gel time at 70°F).
Celroc P is a high-strength, non-shrink, non-metallic grout consisting of rapid hardening hydraulic cement and super plasticizer. Designed to produce a pumpable grout at low w/c ratios with the unique features of being highly resistant to dilution in moving water and aggressive ground conditions.
GeoFlex is flexible and under the stress of strata movement is capable of dissipating deformation energy. GeoFlex achieves its ultimate strength much faster than other resins, even when applied in thin layers, just a few minutes after application.
Terraset® grout is a low-viscosity, chemical grout system used for ground consolidation and stabilization of foundations and footings located on fine to medium sands. Other important uses include control of water inflow into shafts and tunnels during excavation, pre-grouting of TBM/EPBM tunnel headings, formation of impervious grout curtains to contain pollution by hazardous waste, and cut-off walls into alluvial deposits at dam sites.
The Terraset® System is a completely water soluble process consisting of two components:
On a volume basis, the amount of Terraset® Component B - hardener needs to range from 10% to 15% based on the sodium silicate concentration. The higher hardener concentration gives the most durable gels. Gel time of the mixed grout solution is approximately 12 minutes at 70°F. The resulting gels are homogeneous, dense and well structured.