Resins

An organic polymer, solid or liquid; usually thermoplastic or thermosetting.

Restoration

The backfilling, compaction and re-surfacing of any excavation in order to restore the surface and underlying structure to enable it to perform its original function.

Retract

The motion of the machine away from the face of the entrance pit.

Return Line

Pipeline that transports slurry from the face of the MTBM to the slurry separation plant. Also known as an outlet line or discharge line.

Reverse

The counter-clockwise rotation of the auger as viewed from the machine end.