MasterRoc SWA 705 strong thickener for soil conditioning in tunnel boring machines (TBM)

 

MasterRoc SWA 705 description:

MasterRoc SWA 705 polymer works as a binding agent, to increase soil plasticity and cohesion, which helps to improve the balance of pressure in the working chamber, resulting in better ground stability and soil extraction.

MasterRoc SWA 705 polymer can be used to enhance the performance of MasterRoc SLF foams and MasterRoc ACP soil conditioning products in saturated soils. MasterRoc SWA 705 polymer is also suitable for use for an adequate sealing of the excavation face during hyperbaric interventions in combination with the injection of bentonite or filler slurries.

Recommended uses of MasterRoc SWA 705:

  • Earth Pressure Balance (EPB) and Slurry TBMs

  • 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

Features of MasterRoc SWA 705

  • Reduced soil permeability

  • Ready to use - no mixing equipment required

Benefits of MasterRoc SWA 705

  • Provides an even and controlled support pressure and increased face stability by creation of plastic deformation properties in the soil

  • Lowers the inner friction and abrasiveness of the soil

  • Increases cohesion of coarse sands and gravels

  • Improves the yield and filter cake properties of bentonite slurries

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