Backfill testing for better engineering

MineFill provides specialist backfill material testing and characterisation to underpin mix design, strength performance and quality assurance connecting laboratory results directly to engineering and project delivery.

Testing Capabilities

Characterisation, mix design and quality assurance

Specialised personnel and suitably equipped laboratories with a thorough understanding of handling and assessing tailings and backfill materials.

Material Characterisation

Tailings and backfill material characterisation across all fill types.

Mix Design

Mix designs developed to meet target strength and placement requirements.

Mix Optimisation

Binder and aggregate optimisation to balance performance and cost.

Strength Testing

UCS, triaxial and flexural testing to verify in- situ performance.

QA/QC Systems

Quality assurance and control systems for backfill placed underground.

Project Testing Support

Testing support for both consulting studies and live delivery projects.

Connected To Delivery

Testing that supports the full project lifecycle

MineFill’s testing capability supports both consulting studies and live project delivery. Results feed directly into mix design, strength assessments and QA/QC systems, giving clients confidence that the backfill placed underground performs as designed.

Where appropriate, work is supported through Backfill Testing Services (BTS) opened in 2021 and managing MineFill’s testing requirements from its Newcastle, Australia laboratory.

Test Methods

A complete backfill testing suite

Classification & Mineralogy

Particle sizing & specific gravity

Moisture content & pH

Mineralogy (QXRD)

Water quality & cement testing

Rheology & Flow

Rheology testing & material assessment

Static yield by vane technique

Shear viscosity (HAAKE VTiQ viscometer)

Conical, Boger & Warman slump (pumping)

Thickened tailings transportation assessment

Dewatering & Settling

Filtration & thickening

Flocculation screening

Consolidation & settling tests

Surface tailings disposal testing

Strength & Geotechnical

Uniaxial Compression Strength (UCS)

Triaxial testing — CD, CU, UU

Permeability testing

Flexural & advanced geotechnical testing

Laboratory Testing

Talk to us about your backfill testing requirements

From material characterisation through to mix design and QA/QC, MineFill connects laboratory results directly to delivery.