La FIBRATEC AR Glass Fibre reduces cracking by creating bonds in concrete.
FIBRATEC AR Glass Fibre binds concrete to reduce cracking.
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:
|MULTIFILAMENT POLYPROPYLENE FIBRE||FIBRATEC ALKALI-RESISTANT GLASS FIBRE|
|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.|