複合GFRP
持続可能なソリューション
GFRP production generates 60% – 70% less CO2 than steel rebar
より強く
鋼よりも
コスト削減
生産、輸送、設置
環境に優しい
長寿命
持続可能な
低いCO2排出量
GFRP鉄筋とは何ですか?
Glass fiber reinforced polymer (GFRP) rebar is an alternative reinforcing bar to traditional steel rebar. Unlike traditional steel rebar, which is made of carbon steel, GFRP 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
- 軽量
- 必要な具体的な内容が少なくなる
- 鋼よりも長寿命
How is GFRP Made?
ファイバ
ガラス
炭素
樹脂
Polyester
炭素
エポキシ
GFRPグランドアンカーの特性と仕様
Temporary GFRP 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 GFRP ground anchors possess safe working loads of up to 150 kilonewtons(kN) and are resistant to both acidic and alkali soil conditions.
簡単な取り外しと最小限のリスク
Crucially, temporary GFRP ground anchors can be easily cut and removed using piling, excavation, and tunnel boring machines without the risk of damage or program delays.
この機能は開発者と請負業者に利便性を提供し、建設プロセスを合理化し、潜在的な後退やプログラムの遅延を最小限に抑えます。
Using GFRP in Tunneling Projects
In tunneling, soft-eye applications refer to the use of GFRP (Glass Fiber Reinforced Polymer) elements, such as bars or tendons, to reinforce and support the excavation face of a tunnel during construction. GFRP bars are typically installed in a radial pattern around the periphery of the tunnel face and anchored into the surrounding ground. Additionally, GFRP 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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