MasterRoc SWA 710 - Strong Thickener for Soil Conditioning in Tunnel Boring Machines (TBM)
What is MasterRoc SWA 710?
MasterRoc® SWA 710 is a liquid polymer, which is specifically designed for its use in ground and slurry conditioning. MasterRoc® SWA 710 works as a binding agent restructuring the soil with a poor grading and low fines content, increasing its plasticity and cohesion, which helps to improve the balance of pressure in the working chamber, leading to better ground stability and soil extraction. MasterRoc® SWA 710 can be used to enhance the performance of MasterRoc SLF foams and ACP soil conditioning products in difficult ground conditions, for example, in coarse soil with low fine content, or saturated soil with high water pressure. MasterRoc® SWA 710 is also suitable to use for an adequate sealing of the excavation face during hyperbaric interventions in combination with the injection of bentonite or filler slurries.
What is MasterRoc SWA 710 used for?
- EPB and Slurry TBMs
- High ground water pressures, poorly graded or
ground containing low amount of fine particles,
water saturated ground, and
- Bentonite slurry modification in case of high soil
porosity or saline water conditions.
- Improving the yield and filter cake properties of
bentonite and filler slurries.
- Lubricant for pipe jacking.
What are the benefits of MasterRoc SWA 710?
- Structuring the soil, particularly effective in,
coarse, clean sands and gravels below
groundwater.
- Reducing soil permeability.
- Creation of plastic deformation properties in the
soil providing an even and controlled support
pressure and increased face stability.
- Lowering the inner friction and abrasiveness of
the soil. Increasing cohesion of coarse sands
and gravels.
- Improves the yield and filter cake properties of
bentonite slurries.
- Ready to use - no mixing equipment required.