MasterRoc SLF 75

Soil conditioning foam for Tunnel Boring Machines (TBM)

How Does MasterRoc SLF 75 Work?

MasterRoc SLF 75 is a high-performance foaming agent, specially designed to improve the performance and control of the soil through the screw conveyor under the toughest conditions.

What Are the Unique Features of SLF 75?

MasterRoc SLF 75 creates a highly stable fine foam to hold the face pressure and maintain the rheology of the excavated ground longer than conventional foaming agents. MasterRoc SLF 75 can be used with the standard foam generators installed on EPB machines. It can be inject-ed at the cutterhead, into the working chamber and screw conveyor. Designed for silt to sand soils.

What Are the Benefits of MasterRoc SLF 75?

• Improved soil behavior.

• Easier ‘mucking’.

• Reduced soil permeability.

• Creation of plastic deformation properties in the soil,which provides controlled support pressure and increased
  face stability.

• Lower inner friction and lower abrasiveness of the soil at the cutterhead.

• Reduced stickiness of certain soils, which would lead otherwise to blockage problems.