Glassfibre Reinforced Concrete/Cement

GRC (Glassfibre reinforced concrete/cement). Prefabricated concrete reinforced with fiberglass for the formation of industrialized construction systems.

In PREHORQUISA we are specialists in the production of prefabricated GRC offering our customers different systems; among others, we highlight.

  • GRC Sandwich Panel:
    • GRC panels with EPS lightening core (expanded polystyrene)
    • Thickness: 10 mm GRC sheet + 80-100 mm EPS + 10 mm sheet.
    • Maximum approximate dimensions of 5,000x3,000 mm and approximate weight of 60 and 80 kg/m2
  • GRC Studframe Panel:
    • Stiffened GRC panels with metallic tubular frame
    • Thickness: 10 mm GRC sheet + 20/30 mm spacing + 80 mm frame
    • Maximum approximate dimensions of 9,000x3,000 mm and approximate weight of 45 and 65 kg/m²
  • Panel GRC Lamina:
    • GRC panel solid
    • Thicknesses: 10-20-30 mm
    • Maximum approximate dimensions of 3,000x2,000 mm and approximate weight of 30 to 45 kg/m2

GRC type facades


Sandwich GRC panels for the formation of the main sheet of the facade anchored to the main structure of the building, will require a complete lining and insulation.

Thickness: 10 mm GRC sheet + 80-100 mm EPS + 10 mm sheet.

GRC panels with EPS lightening core

LEGEND: 1- GRC sandwich panel / 2- Insulation / 3- Air chamber / 4- Mineral wool between metal guides / 5- Double laminated plasterboard


GRF Studframe panels for the formation of the main sheet of the façade anchored to the main structure of the building, will require complete lining and insulation.

Thickness: 10 mm GRC sheet + 30 mm separation + 80 mm frame.

GRC panels stiffened with metallic tubular frame.

LEGEND: 1- GRC sheet / 2- Metal tubular frame / 3- Insulation / 4- Air chamber / 5- Mineral wool between metal guides / 6- Double laminated gypsum board

Process in prefabricated GRC

Production Planning

In a generic way the phases of the production process are the following:

  • Development by our technicians of the prefabrication project based on the instructions collected from the work, making exploded drawings, details of encounters and anchors, three-dimensional models, calculation memory, ...

  • Execution (based on agreed term) of the number of molds necessary for the consequence of the objective.

  • Projected of the different layers of the panels, compaction of them and placement of embedments (the process is variable depending on the type of panel to be manufactured).

  • Removal of the prefabricated to the collection sites, where they will be given the final treatment, as well as the corresponding cosmetics.

  • Transport to work on supports that protect the prefabricated.

  • Assembly with the help of auxiliary cranes for the handling of the prefabricated.

Images of the manufacturing process

GRC prefabricated finishes

The aesthetic characteristics of the prefabricated are determined by two factors, tone or color and texture, these are achieved by combining the following factors:

TYPE OF CEMENT: white or gray

COLORING, ADDITIVES, ...: pigments, water repellents, ...

TEXTURE: smooth, relief (chopped, chip, ...), grecado-fluted, special formwork in wood or with elastomeric matrices, photoetched, ....

FINISHES: out of mold, glazes, water repellent, ...

For more detailed information on the specific processes of each type of panel, you can request the GRC Technical Report with the description of the production process by contacting us.

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