GB/T 28900-2012 Translated English of Chinese Standard. (GBT28900-2012): Test methods of steel for reinforcement of concrete
https://www.chinesestandard.net, 2022 M01 6 - 25 pages
This standard specifies the test methods for tensile, bending, reverse bending, axial fatigue, chemical analysis, geometric measurement, measurement of relative rib area, determination of weight deviation, metallographic inspection of steel, for reinforcement of concrete. This standard applies to steel products for reinforcement of concrete.
10.3 Test procedure 11.2 Determination 13 Metallographic inspection 13.2 Test procedure 15 and Appendix adopts ISO angle of transverse average value axial direction axial fatigue test bending angle bending core diameter calculating the average clamping different transverse ribs elongation at maximum Empirical formula End clearance extensometer fatigue test 8.1 force Fup force range gauge length hmax hs,i line segment maximum force Fm measurement accuracy measuring at least Metallographic inspection method modifies and adopts nominal cross-sectional area number of cycles parallel length plastic elongation product identification reinforcement of concrete reinforcing bars relative rib area relevant product standards requirements of Chapter reverse bending device reverse bending test rib area f rows of transverse shown in Figure specimen shall meet Specimen The specimen standard and ISO steel bar straightening stress range supporting roller Technical differences temperature tensile test test report total elongation Unless otherwise specified weight deviation whichever is larger