Rock type alone does not fully define a hard-rock aggregate: strength, abrasion, shape, grading and fines are checked against the application. Rail ballast, asphalt and concrete may require different tests. Samples and current laboratory results are reviewed alongside the shipment plan.
Sourcing scope
Product groups
- Basalt crushed stone
- Railway ballast
- Asphalt surface-course aggregate
- Drainage and gabion stone
To prepare your inquiry
- What are the intended use and grading class?
- Which test standard, annual quantity and delivery point apply?
Availability, technical suitability, origin and commercial terms are confirmed separately for each inquiry.