Construction Materials

Our limestone fillers are extracted in the Pas-de-Calais département, ground according to a stringent industrial process and comply with all European building standards and regulations.

The chemical composition of our untreated limestone additives complies with standards and regulations currently applicable to the construction and public works sectors. Toughness, abrasion resistance, freeze-thaw resistance, flakiness index, purity: physico-chemical analyses performed in laboratories on the production site confirm that our fillers are of top quality and meet all relevant standards.

Additional confirmation of this is provided by our certifications.

Our micronized limestone is ground to create a mineral product that’s suited to the needs of all sub-divisions of the construction and public works sector.

brique filler calcaire

Product properties

  • Methylene Blue Value
  • Specific surface area measurement using the Blaine method
  • Particle size
  • Whiteness

plâtre calcaire


  • Plasters
  • Sealants and mortars
  • Bricks
  • Precast concrete, concrete and self-compacting concrete
  • Ceramics

Carbocia limestone fillers: the mineral raw material for your construction projects.


Carbocia, the specialists in limestone fillers

In terms of particle size, uniformity and consistency, colour, flowability and chemical composition our micronized limestone fillers (ranging in size from a few microns to 4 mm) are perfectly suited to agricultural and industrial uses, meeting the specific standards and requirements of these sectors. We are able to operate on a continuous production basis and boast an integrated logistics infrastructure.

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We sell top-quality limestone fillers extracted from the Carrières de la Vallée Heureuse quarry in France’s Pas-de-Calais area. The intrinsic physical and chemical propertiesof our limestone and our micronization techniques are of major benefit to many industries. We shift our focus and adapt our products to keep pace with ongoing technological progress thanks to our partner CVH’s laboratory.

Our products

Our limestone has a content of over 96% CaCO3. This extremely high level allows us to meet the specifications of the industrial and agricultural sectors. The particle size of our fillers meets all relevant product requirements and complies with all standards and regulations currently in force. 

Animal Feed Find out more
Grouts & plasters Find out more
Fertilizers & agriculture Find out more
Carpet backing & rubber Find out more
Precast concrete/concrete Find out more
Asphalt Find out more
Sealants/roofing Find out more

Carbocia in pictures