стекловолокна арматуры

Product Properties Fiberglass rebaris a structural spiral wrapped fiberglass reinforcing rod which is corrosion resistant, non-conductive and lightweight while it is one-fourth the weight of steel rebar. It more closely matches the characteristics of wood for modulus of elasticity, expansion and contraction, and condensation than does typical steel reinforcing rod. The Modulus of Elasticity of FRP rebar from the test results is 7.86 x 10 psi, that of steel 30 x 10 psi. In other words, for the same shape and same load, FRP will deflect, elongate, or compress approximately five times as much as steel. Application fields For making load bearing connections, pinning and reinforcing wood and concrete elements. Typical applications include attachment and reinforcement of rafters, trusses, purlins, framing members, beams, sills, columns, logs, timbers, etc. It can be used for casting wood and concrete elements and to replace steel rebar in concrete slabs, forms and beams. Fiberglass rebar is most often used in conjunction with Epoxy Adhesive for attaching the rebar to the elements and the elements to one another. Design Hintsl Use Working Stress Method of Design l Use a Modular Ratio of N=2 (for 4,000 psi concrete) l Use a maximum allowable tensile stress of 18,000 psi l At spliced joints, use an overlap of 40 x bar diameter l Bond Strength to concrete is approximately equal to that of steel rebar l Transverse shear strength is 30,000 psi