Aggregates
Polished Stone Value (PSV)
- PSV is a laboratory-based test conducted on the single stone fraction (10mm).
- Adopted standard test method – SANS 5848
- The test determines the micro texture of the aggregate which assists in the breaking, acceleration and turning of vehicles.
Aggregate Testing Services
- Clay lumps and friable particles
- Fine aggregate angularity
- Sand equivalent test
- Determination of the flakiness index of coarse aggregates
- Determination of bulk density, apparent density and water absorption – course aggregate
- Determination of bulk density, apparent density and water absorption – fine aggregate
- Relative density of filler
- Bulking Factor (Loose, compacted and rodded density)
- Fine aggregate angularity
- Relative density of fine aggregates
- Relative density of course aggregates
- Methylene blue test
- Average least dimensions (ALD)
- Fractured Faces
- Particle size analysis of aggregates by sieving