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Verbund-GFK

Nachhaltige Lösungen

GFK production generates 60% – 70% less CO2 than steel rebar
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Stärker

als Stahl

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Kostensparend

Produktion, Transport, Installation

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Umweltfreundlich

Längere Lebensdauer

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Nachhaltig

Geringe CO2-Emissionen

Was sind GFK-Bewehrungsstäbe?

Glass fiber reinforced polymer (GFK) rebar is an alternative reinforcing bar to traditional steel rebar. Unlike traditional steel rebar, which is made of carbon steel, GFK 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.
  • Non-corrosive
  • Stronger than steel
  • Leicht
  • Weniger Betonabdeckung erforderlich
  • Längere Lebensdauer als Stahl

How is GFRP Made?

Faser

Glas 

Kohlenstoff

Harz

Polyester

Kohlenstoff 

Epoxidharz

Eigenschaften und Spezifikationen von GFK-Erdankern

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

Einfache Entfernung und minimales Risiko

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

Diese Funktion bietet Entwicklern und Auftragnehmern Komfort, rationalisiert Bauprozesse und minimiert mögliche Rückschläge oder Programmverzögerungen.

Using GFRP in Tunneling Projects

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

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