Groupe Dextra | Connexions fiables

Composite

PRV composite

Solutions durables

PRV production generates 60% – 70% less CO2 than steel rebar
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Plus forte

que l'acier

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Économie de coûts

Production, Transport, Installation

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Respectueux de la nature

Durée de vie plus longue

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Durable

Faibles émissions de CO2

Que sont les barres d'armature GFRP ?

Glass fiber reinforced polymer (PRV) rebar is an alternative reinforcing bar to traditional steel rebar. Unlike traditional steel rebar, which is made of carbon steel, PRV rebar is composed of high-strength glass fibers embedded in a polymer resin matrix. This material offers several advantages over steel rebar, including corrosion resistance, high strength-to-weight ratio, electromagnetic neutrality, and non-conductivity.

How is GFRP Made?

Fibre

Verre 

Carbone

Résine

Polyester

Carbone 

Époxy

Propriétés et spécifications des ancrages au sol GFRP

Temporary PRV ground anchors are 25% lighter than conventional steel strand anchors while exhibiting twice the strength. They can be installed using the same construction methods as their steel counterparts and maintain similar diameters and strand quantities.

These PRV ground anchors possess safe working loads of up to 150 kilonewtons(kN) and are resistant to both acidic and alkali soil conditions.

Retrait facile et risque minimal

Crucially, temporary PRV ground anchors can be easily cut and removed using piling, excavation, and tunnel boring machines without the risk of damage or program delays.

Cette fonctionnalité est pratique pour les promoteurs et les entrepreneurs, en rationalisant les processus de construction et en minimisant les revers potentiels ou les retards du programme.

Using GFRP in Tunneling Projects

In tunneling, soft-eye applications refer to the use of PRV (Glass Fiber Reinforced Polymer) elements, such as bars or tendons, to reinforce and support the excavation face of a tunnel during construction. PRV bars are typically installed in a radial pattern around the periphery of the tunnel face and anchored into the surrounding ground. Additionally, PRV bars are generally softer and less abrasive than steel reinforcement, making them easier to cut with tunnel boring machines (TBMs) equipped with cutting tools. This property reduces wear and tear on the TBM’s cutting tools, leading to lower maintenance costs and minimizing the risk of damage to the equipment.

Traçabilité des produits

Chaque produit est marqué individuellement

suivant une certaine syntaxe, garantissant traçabilité totale.

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