Mountain Grout Strong
Green Mountain International has provided materials for some of the tunneling industry’s most prestigious projects. Our Mountain Grout Flexible, SLV and HL-100 are commonly used to stop water intrusion through cracks and failed joints. The problems may be in new construction or in tunnels builtbefore 1850. From railroad tunnels in India to Metro tunnels in Greece,our products are time tested, proven effective and long lasting. Solidifying soils in advance of TBMs (Tunnel Boring Machine) is also very common. Green Mountain’s Mountain Grout Soil Stabilizer is moisture cured polyurethane that is used when super low viscosity (40 centipoise) is needed to penetrate soil particles and provide high compressive strength, 750+psi.
Polyurethane systems are sensitive to moisture so the available moisture in the ground causes the chemical grout to cure. Mountain Grout Accelerator may be added to the base resin to cause the resin to react faster than normal if there is water migrating through the soils. When water control is not the issue, but super poor soils are present our Mountain Grout Acrylate is recommended.
Mountain Grout Acrylate – For Tunnels
Mountain Grout Acrylate may be pumped at different ratios from 2:1 or 3:1 base with water to form a gel that does not have high strength, but does perform in leak sealing, curtain grouting, even crack injection.Both polyurethane and acrylic grouts are members of the“chemical grout” family and particularly in tunneling operations are used for both water control and stabilization in from of the advancing TBM.
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