High strength FRP rock bolt for coal roadway support and protecting

Supplier evaluation strength ( ISO Certification & BV authentication )   Product Description   1 Product Name: High strength FRP rock bolt for coal roadway support and protecting   2 Introduction The FRP rock bolt is made from high strength glass fibers along with an extremely durable vinyl  ester resin. The glass fibers impart strength to the rod while the vinyl ester resin imparts  excellent corrosion resistance properties in harsh chemical and alkaline environments.  For improved stiffness and mechanical properties a carbon/vinyl ester product is available. FRP rebar significantly improves the longevity of civil engineering structures where corrosion is a major factor.    3 Features and Advantages 1) Easily cutting and no damage to coal mining head 2) High strength, high torque, well fatigue resistance, energy saving and environmental protection 3) Fiberglass anchor bolt is light 4) Coefficient of thermal expansion is closer to cement than steel 5) Fiberglass anchor bolt has high corrosion resistance quality      4 Technical Data

appearance	screw thread / sand blasting	screw thread / sand blasting
diameter(mm)	3--35	3--32
density(g/cm3)	1.5-2.0	1.9-2.1
tensile strength(MPa)	≥550	≥700
modulus of elasticity  (GPa)	30-41	≥45
alkali proof (%)	≥75	≥75

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