MasterRoc SLF 200

High performance foaming agent for difficult heterogeneous grounds with variable range of permeability, readily biodegradable for tunnel boring machines

Material Description

MasterRoc SLF 200 is a polymer-enriched foaming agent, specially designed to improve the performance and control of the soil through the screw conveyor under the toughest conditions.

Areas of Application

MasterRoc SLF 200 creates a stable foam to hold the face pressure and maintain the rheology of the excavated ground longer than conventional foaming agents. It can be used with the standard foam generators installed on EPB machines and injected at the cutterhead, into the working chamber, and the screw conveyor. Designed for heterogeneous grounds.

Characteristics and Benefits

• 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 otherwise lead to blockage problems