Structural polymer fibres for concrete
WHERE TO USE
Mapefibre ST 50 Twisted are particularly suitable for the following:
·installation of industrial floors;
·production of pre-cast concrete panels and pipes, concrete section＇s, etc.;
·production of shotcrete;
·for pervious concrete.
DESCRIPTION
Mapefibre ST 50 Twisted are class II structural polymer fibres, in compliance with EN 14889-2:2006, with a length of 50 mm respectively, developed to improve the performance characteristics of conventional concrete, pre-cast concrete and shotcrete.
Mapefibre ST 50 Twisted represent a valid alternative to traditional reinforcing techniques (such as electro-welded mesh and/or steel fibres) when used to distribute loads, to limit crack phenomenon due to plastic shrinkage and to produce high-ductility concrete and normal-setting, accelerated-setting shotcrete (safety layers and/or final layer in tunnels and trenches and on rock-faces, walls of water channels, etc.).
The advantages of these products include ease of handling and loading into mixers and a low specific weight per cubic metre, which also makes this technology competitive from a logistics and site management point of view.
Mapefibre ST 50 Twisted are also resistant to alkalis and do not corrode, during both the storage phase and once added to the concrete mix, even in aggressive environments.
Mapefibre ST 50 Twisted are characterised by a special surface treatment which guarantees excellent grip to the cementitious paste and an even distribution within the concrete mix.
CONSUMPTION
The quantity of Mapefibre ST 50 Twisted added to the concrete ranges from 1.5 to 5 kg/m³, according to the performance characteristics required.
PACKAGING
Mapefibre ST 50 Twisted are supplied in 3 kg plastic bags and in carton box containing 10 water soluble bags 1.5 kg/each.
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