Interrock Oy produces some 500,000 tonnes of crushed Eurajoki olivine diabase per year for construction and other end-use applications. Efficient crushing and screening plants, together with highly-trained personnel and high quality raw material guarantee the right rock material for all applications.

Our aggregate is tested for compliance with quality standards and CE marking requirements. Interrock Oy entitled to use CE marking on the following construction products:

  • Aggregates for concrete SFS-EN 12620:2003
  • Aggregates for bituminous mixtures SFS-EN 13043:2003
  • Aggregates for railway ballast SFS-EN 13450:2003

Interrock Oy has been entitled to CE marking since 17.8.2004.

Diabase is a rock type of very high durability.

Technical properties
Solid density
Ball mill value
≤ 14
Los-Angeles value
≤ 15
Water absorbtion
≤ 0.5
Mineral composition
55 %
Pyroxene 25 %
Olivine 12 %
8 %


Kerro meistä kavereillesi