Grupo Dextra | Conexões confiáveis

Composto

PRFV composto

Soluções Sustentáveis

PRFV production generates 60% – 70% less CO2 than steel rebar
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Mais forte

do que o aço

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Economia de custos

Produção, Transporte, Instalação

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Ecológico

Vida útil mais longa

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Sustentável

Baixas emissões de CO2

O que são vergalhões GFRP?

Glass fiber reinforced polymer (PRFV) rebar is an alternative reinforcing bar to traditional steel rebar. Unlike traditional steel rebar, which is made of carbon steel, PRFV 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?

Fibra

Vidro 

Carbono

Resina

Polyester

Carbono 

Epóxi

Propriedades e especificações de âncoras terrestres GFRP

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

Fácil remoção e risco mínimo

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

Esse recurso oferece comodidade para incorporadores e empreiteiros, agilizando os processos de construção e minimizando possíveis contratempos ou atrasos no programa.

Using GFRP in Tunneling Projects

In tunneling, soft-eye applications refer to the use of PRFV (Glass Fiber Reinforced Polymer) elements, such as bars or tendons, to reinforce and support the excavation face of a tunnel during construction. PRFV bars are typically installed in a radial pattern around the periphery of the tunnel face and anchored into the surrounding ground. Additionally, PRFV 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.

Rastreabilidade do Produto

Cada produto é marcado individualmente

seguindo certa sintaxe, garantindo rastreabilidade total.

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