ASTM D7957/D7957M-25

Detail information

Designation: ASTM D7957/D7957M-25

Publication date: 15/11/2025

Pages: 7

Country: American technical standard

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Anotation

This specification covers glass fiber reinforced polymer (GFRP) bars, provided in cut lengths and bent shapes and having an external surface enhancement for concrete reinforcement. It specifies the property limits and test methods for qualification, quality control and certification of GFRP bars, the geometric and mechanical property requirements, and minimum inside bend diameter of bent bars. Physical properties include fiber mass content, glass transition temperature, degree of cure, and bar sizes), whereas mechanical properties include ultimate tensile force, tensile modulus of elasticity, ultimate tensile strain, transverse shear strength, and bond strength.


Keywords:
bar, basalt fiber, concrete reinforcement, Fiber Reinforced Polymer, FRP, glass fiber, non-metallic, rebar, reinforced concrete,, ICS Number Code 91.100.30 (Concrete and concrete products)