PSI Engineered Backfill Systems Are Based on A Mechanistic Materials Framework to Reliably Design Backfill Materials.

Where possible, PSI repurposes tailings based on field performance and within our backfilling services. Tailings repurposing innovation is the cornerstone to PSI backfill systems that enable better use of tailings while at the same time providing ground support to manage structural integrity and inflows.

PSIMINE3D™ and our laboratory materials characterization protocols result in backfill systems designed to provide structural support while minimizing environmental impact.

PSI custom backfill solutions utilize both soft rock as well as hard rock tailings that meet necessary end-product properties such as pumpability, viscosity, adhesion, shear stiffness and fracture toughness. Through PSIMINE3D™, PSI backfill systems can be engineered to accommodate various mine field state conditions. PSI backfill systems can be engineered as a thickened paste or high-flow systems.

Executive Summary

  • Tailing Repurposing
  • Pumpable Backfill
  • Paste Backfill
  • Fluidized Backfill
  • Structural Ground Support
  • Hard Rock and Soft Rock
  • Backfill Systems