GB/T 21839-2008
AbolishedSteel for prestressed concrete - Test methods
预应力混凝土用钢材试验方法
Application Summary AI generated
GB/T 21839-2008 specifies test methods for steel used in prestressed concrete, including tensile, bending, relaxation, and fatigue testing. It is applied in the construction industry for quality control of steel bars, wires, and strands used in bridges, high-rise buildings, and other prestressed concrete structures. The standard ensures that these materials meet mechanical performance requirements before and during construction.
Related Standards
GB/T 19289-2003
Methods of measurement of density，resistivity and stacking factor of electrical steel sheet and strip
GB/T 19346-2003
Measuring method of magnetic properties at alternative current for amorphous and nanocrystalline soft magnetic alloys
GB/T 6524-2003
Metallic powders--Determination of particle size distribution by gravitational sedimentation in a liquid and attenuation measurement
GB/T 2976-2004
Metallic materials--Wire--Wrapping test
GB/T 4160-2004
Steel-strain ageing sensibility test(Charpy impact method)
GB/T 12689.9-2004
The methods for chemical analysis of zinc and zinc alloys--The determination of antimony content--The atomic fluorescence spectrometer and the flame atomic absorption spectrometric method
GB/T 12689.6-2004
The methods for chemical analysis of zinc and zinc alloys--The determination of lead content--The oscillopolarographic method
GB/T 12689.10-2004
The methods for chemical analysis of zinc and zinc alloys--The determination of tin content--The phenylfluorone-cetyltrimethyla-mmonium bromide spectrophotometric method
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.