Conbex Backfill Binder is a blend of inorganic cementitious powders that act as a binder for milled mine tailings used in backfilling.
The required percentage of Conbex must be determined by actual test, using the actual tailings and actual mine conditions. Typical additions are 5-8% to obtain 1.0 MPa after 28 days.
The rate of strength gain can be affected by the following:
- Wet density (solids content)
- pH
- Particle size distribution
- Dissolved chemicals
- Temperature
Advantages
- Ideal for high water content tailings slurries
- Superior strength development
- Lower cost than pure cement systems
Product Features
- Extensively proven in use
- Compressive strength of 1.2 MPa, 7 days after application
- Delayed setting reduces likelihood of blocking pipelines
Product Options
- Conbex Backfill as supplied in bulk by tanker
