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Dragongrip™ GFRP Hollow Injection Bolt (GFRP Hollow Grouting Bolt, GFRP Hollow Injection Bar, GFRP Soil Nailing & Rock Bolting, GFRP Soil Nail and Ground Anchors) is a good alternative product compared with steel products when used in geotechnical engineering projects (Soil nailing/Retaining wall/Slope stabilization/Ground stabilization). The GFRP Hollow Injection Bolt is manufactured by the pultrusion process technology and special mechanical production methods with high-quality raw materials of fiberglass reinforced and polyester/vinyl/epoxy resin according to different application environments.
Compared with conventional steel products, GFRP Hollow Injection Bolt shows a high loading, torsion resistance, and pressure resistance capacity with accessories, but the weight is only one-quarter of the steel product. Moreover, the bolt can remain in the borehole and bear load with plate and nut at the end after injection work. It has a very good bonding force with all grouting materials. Due to high injection pressure, it can realize full grouting and improve project quality.
