TunnellingReinforcement

GFRP Bar & Stirrups

The GFRP BAR and Stirrups are successfully used to replace the traditional reinforcement bar within concrete structures in temporary tunnelling works (D-walls, retaining walls, piles and the like) e.g. within the tunnel breakthrough, the so-called ‘soft-eye’.

The GFRP BAR CRG reinforcement elements are made from reinforced polyester resin matrix, together with a unidirectional Glass Fibre (GFRP type E-Glass) continuous thread profile.
The GFRP BAR CRG provides the following advantages:
– Extremely high tensile strength
– High flexural strength
– High shear strength
– Extremely high modulus
– Significant enhancement of the friction effect (pull-out effect)
– Cuttability
– High corrosion resistance

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