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Database: 365,228(8 Aug 2026)
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GB/T 21839-2008 in English

GB/T 21839-2008 in English

SUPERSEDED

Steel for prestressed concrete - Test methods

  • Issued on:2008-05-13
  • Implemented on:2008-11-01
  • File Format:PDF
  • Delivery:Via email within 1~3 business days
Price(USD): $180.00
$175.00
Standard No: GB/T 21839-2008
Document status: SUPERSEDED
Superseded by: GB/T 21839-2019 Test methods of steel for prestressing concrete
Superseded on: 2020-05-01
Title in English: Steel for prestressed concrete - Test methods
Title in Chinese: 预应力混凝土用钢材试验方法
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 1~3 business days
Issued on: 2008-05-13
Implemented on: 2008-11-01
ICS Classification: 77.140.15-Steels for reinforcement of concrete
Chinese Classification: H20-Metal physical and chemical property test method in general
Professional Classification: GB-National Standard
Related Keywords: prestressed steel wire
steel rod
steel strand
test methods
prestressed concrete
Related Topics: steel
gb21839
Steel wire for prestressed concrete, the same specification
GB t 21839
Wood Internal Stress Test Method
Application of steel
Method prevalidation
Prestressed Concrete
Prestressed Concrete
Prestressed
material test
a stress
Steel application
Internal stress of steel
steel for concrete
GBT21839
GB/T 21839-2008
GB/T 21839-2019
steel for prestressed concrete
"Test Methods for Steel for Prestressed Concrete" GB/T 21839-2019
How to calculate concrete stress and strain
Gel cohesion test method
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Concrete pressure testing machine requirements
Pre-embedding method of concrete temperature measurement line
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Test method for bonding performance between reinforced sheets and concrete
Calibration method of concrete test block press
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Application of Quantitative Forecasting Methods
gbt21839
gb/t 21839
gbt21839-2019

《GB/T 21839-2008预应力混凝土用钢材试验方法》由TC183(全国钢标准化技术委员会)归口,主管部门为中国钢铁工业协会。
本标准是根据ISO15630?3:2002重新起草。本标准规定了预应力混凝土用钢材的拉伸、弯曲、反复弯曲、扭转、缠绕、等温松弛、疲劳、应力腐蚀、偏斜拉伸、化学分析、几何尺寸测量和相对肋面积确定等试验方法。本标准适用于预应力钢丝、钢棒、钢绞线等产品相关性能的测定。 为了方便我国预应力行业生产厂和用户的使用,与对应国际标准相比本标准主要做了如下技术性修改:
―――增加了第8章 扭转试验;
―――增加了第9章 缠绕试验;
―――增加了附录A《预应力混凝土用多丝钢绞线试验方法》。


Scope

This standard specifies the test methods for tensile, bending, repeated bending, torsion, winding, isothermal relaxation, fatigue, stress corrosion, deflection tension, chemical analysis, geometric dimension measurement and relative rib area determination of steel for prestressed concrete. This standard is applicable to the determination of relevant properties of prestressed steel wire, steel rod, steel strand and other products

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