La FIBRATEC AR Glass Fibre reduces cracking by creating bonds in concrete.

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  • Welded steel mesh needs to be properly chockedto hold it in place at a distance of around 8cm from the ground.Sheets of steel mesh must be tightly bound together using wires or welding. This entails a great cost in time and labour.
  • La AR glass fibre is simply mix with the concrete and pour. Completion is reduced by about 60%.
  • Steel mesh is usually sold in sheets with a surface area of about 13m² (6m x 2.20m) which means that it needs to be cut and shaped to fit into smaller areas. In addition to the need to transport it in large vehicles, loading and unloading it onto trucks requires mechanical lifting.
  • Steel mesh rusts over time.
  • FIBRATEC glass fibre can be easily transported in sacks or bags.It does not require special vehicles. FIBRATEC is added to concrete as the last component. Just pour the concrete on the site and your floor is protected.
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  • AR glass fibre does not react to any substance that may be found in the area and it is even resistant to the attack of even the most aggressive acids.
  • When a slab is of a lesser thickness (less than 7 or 8 cm), it can be impossible or very to position steel mesh.
  • When FIBRATEC glass fibre is mixed in as reinforcement, the concrete is protected, and therefore the lesser thickness of the slab ceases to be an issue, even at thicknesses of only 4cm.
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  • The price of iron fluctuates constantly.
  • Bearing in mind the amount of manipulation that welded steel mesh requires, FIBRATEC may save you up to 20% on the cost of a finished floor.
  • Steel mesh cannot give protection in nooks, curves, edges, manholes and areas where the slab thickness varies, unless a large amount of time is invested in cutting and shaping.
  • FIBRATEC AR glass fibre will be found in every cubic centimetre of concrete that is poured on the ground.


FIBRATEC AR Glass Fibre binds concrete to reduce cracking.


  • The dosage of metallic fibres is usually upwards of 20kg per m3 of concrete.The low quantity of fibres in one kg of metallic fibre means that high dosages are required (number of steel fibres: between 3000 and 3500 fibres per kg).
  • The dosage of AR glass fibre is around 2kg per m3 in similar conditions.There are more than 200,000,000 filaments in each kg of AR glass fibre.
Andén Renfe Valencia
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  • The tensile strength of steel fiber is around 1,000-1,200 N / mm2
  • AR glass fibre has a tensile strength at least 35% higher than steel. (FIBRATEC: 1,620 N / mm2)
  • La AR glass fibre does not cause a ‘hairy effect’ on the surface.
  • Steel fibres creates pikes on the floor surface. These destroy the wheels of vehicles and wheelbarrows during and after construction, meaning that an additional surface treatment and finish is required.
  • Metallic fibres rust in floors built outdoors, leaving unsightly blemishes.Over time and after abrasion, these fibres begin to detach and become loose on the surface of the floor.
  • AR glass fibre does not have this disadvantage. It leaves no trace and cannot be seen on the paving surface.
Fibra de vidrio AR v12
  • Due to their density, metallic fibres tend to sink to the bottom of the mix. They form hedgehog-like clumps, greatly reducing the workability and pump ability of the concrete. This requires the addition of super plasticizers, thus increasing costs.
  • AR glass fibre does not have these problems. It can be pumped without additives. Furthermore, the specific weight of AR glass fibre is almost identical to that of concrete and therefore it disperses fully and perfectly in a matter of minutes.
  • The construction of a floor with a surface area of 10,000m2 and a thickness of 20cm would involve the need to transportar totransport an approximate amount of 40,000kg of metallic fibre. This would require almost 3 trailers.
  • The quantity of AR glass fibre needed for the equivalent effect on the same floor would be approximately 6000kg. This would only need one small truck for transport.
  • The price of stee fluctuates constantly. Transport and manipulation is very costly.
  • Bearing in mind all these factors, with FIBRATEC AR glass fibre you obtain significant savings compared to metallic fibre.


99% of the time, alkali-resistant glass fibre is confused with MULTIFILAMENT POLYPROPYLENE. Polypropylene fibre is frequently used with concrete and various brands of it can be found on the market. However, these are two very different fibres:

Helps to avoid micro-cracking, as caused by concrete’s initial shrinkage in sudden drying during setting, by retaining water in the mass for longer. Helps to avoid micro-cracking, as caused by concrete’s initial shrinkage in sudden drying during setting, by bonding it together and creating a fibrous structure. INCREASES ITS FLEXURAL STRENGTH.
The usual dosage for this purpose is 600 gr/m3 of concrete. The usual dosage for this purpose is 0.4 gr/m3 of concrete but more can be added as it does not absorb water.
Requires water to be added to the concrete. DOES NOT require water to be added to the concrete.
BARELY increases the mechanical resistance of concrete due to its low tensile strength:(80‐300N/mm²). Can never replace welded mesh. INCREASES the mechanical resistance of concrete due to its HIGH tensile strength
(1620N/mm²). CAN REPLACE WELDED STEEL MESH WITH THE APPROPRIATE DOSAGE.In the majority of cases, a MESH-FREE (*) car park can be made with 2kg/m3.
Melting point:173ºC. Melting point: >1500ºC.Suitable for high temperature applications.
Does not spread homogenously as its density (0.9gr/cm³) is much lower than the density of concrete (2.4gr/cm³),meaning that it tends to float on the surface. Disperses COMPLETELY HOMOGENOUSLY through the mass as its density (2.68gr/cm³) is VERY SIMILAR to the density of concrete (2.4gr/cm³).
Leaves ‘hairs’ on the surface, causes the formation of balls and lumps, making it difficult to polish, imprint patterns and apply other additives. The surface is excellent for polishing, imprinting or adding any additives. Leave no visible trace. Disperses completely homogenously through the mass concrete within minutes.
Sold in 600gr water-soluble paper bags. Sold in 1kg water-soluble paper bags or 20kg sacks.
Fibra polipropileno Fibra AR V-12