MasterRoc® ACP 143 – Anti-clay polymer for earth pressure balance tunnel boring machines

Formerly: RHEOSOIL 143

How does MasterRoc ACP 143 work?

MasterRoc ACP 143 is specially designed to reduce the clogging and adhesion effects of clayey soils . It can be injected at the cutterhead, working chamber and screw conveyer and creates a stable foam that can be used with standard foam generators installed on earth pressure balance (EPB) machines.

What are the unique features of MasterRoc ACP 143?

  • Reduces clogging and adhesion effects on the cutterhead.
  • Creates a plastic soil material which can be excavated and transported.

How does MasterRoc ACP 143 benefit TBM Contractors?

  • Helps to avoid re-agglomeration of clay chips to blocks.
  • Reduces cutterhead torque.
  • Increases TBM speed.

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