Technical Information

GFRC stands for Glass Fibre Reinforced Concrete which is a mixture of fibreglass strands added to the batch to increase both compressive and tensile strength of the concrete used in our products.

Fibreglass or Glass fibre has a tensile strength of 1700MPa, more than three times that of standard steel re-bar. This as you can imagine has a dramatic effect on the overall strength of the concrete and reduces the chances of fatigue cracks and the need for complex steel reinforcement which can sometimes fail due to oxidation of the steel in the case of exposure to atmospheric conditions and water ingress.

Glass Fibre is not affected by oxidation and therefore cannot be weakened or degraded over time. It is used worldwide on various projects that require a high durability against the elements.  With increases of up to 13% in compressive strength and 15% in flexural strength as well as a 50% reduction in the permeability of the concrete this has huge benefits for the majority of or products.

The densification of concrete is done primarily to increase surface hardness and reduce wear with the added benefits of helping to seal and create a shine on the surface. The harder a surface is the brighter is will polish.

The concrete Densifier or Hardener causes a chemical reaction between the Calcium Hydroxide (surface lime dust) and the Lithium Silicate (Densifier) to create a hard Calcium Silicate Hydrate that can be polished and sealed and also helps close any pours on the finished surface. We use a very high quality Lithium Silicate densifier manufactured by one of the top in Europe with an 18% lithium based solution. This works wonders for our products, the increase in shine and longevity of the polished finish is massive compared to concrete that has not been surface hardened. With the addition of sealer this shine is enhanced and protected even further.

The video below will explain more about densification.