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Granular Materials

Sand, gravel and recycling granulates

Sand & gravel

Concrefy’s highly qualified employees handle the complete testing of aggregates and recycled granulates for the concrete and asphalt industry.
For initial assessment (ITT) or suitability testing, we can perform the relevant physical, chemical and petrographic tests in accordance with applicable standards.
These tests are necessary for the admission check for CE marking and / or KOMO certification for, for example, BRL2502 and BRL2506.


  • We can take care of the complete product quality control of granular materials
  • You will be completely relieved from sampling to analysis of quality records.
  • Requirements are set for the many possibilities and outcomes for potential materials.
  • The NEN-EN 12620 and NEN 5905 are examples of this.

Recycling granulates

In the Netherlands, aggregate material is normally formed by sand and gravel. In the other countries, these materials are often less available and, based on availability, other raw materials such as basalt, granite, limestone, quartz and slag become the usual aggregate materials.
For the ever-increasing demand for recycled materials - read: secondary raw materials - to replace primary raw materials in building materials, Concrefy develops innovative systems to enable the use these materials as high-quality as possible for re-use. In this way we help socially responsible construction.

The Concrefy laboratory is NEN-EN ISO \ IEC 17025 accredited by the Dutch Accreditation Council (Raad voor Accreditatie).

We are happy to work together with our customers to develop new recipes and systems allowing for recycling materials to be reused as high-quality building materials. This helps us to contribute to more sustainable building methods with a focus on the future.
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Visiting address

Concrefy B.V.
Olivier van Noortweg 10
5928 LX Venlo
The Netherlands


Concrefy B.V.
Olivier van Noortweg 10
5928 LX Venlo
The Netherlands
Tel +31 77 850 7222
Fax +31 77 850 7223

Chamber of commerce: 51652293
VAT: NL850112680B01


Concrefy GmbH
Trappstraße 6 - 8
46483 Wesel
Tel. +49 (0) 281 209 295
Fax +31 77 850 7223

Chamber of commerce:
AG Duisburg HRB 24010
VAT: DE278519744