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Standard Specification for Uncoated, Stress-Relieved Steel Bars for Prestressed Concrete Ties
Automaticky preložený názov:
Štandardné špecifikácie pre bez povrchovej úpravy, uvoľnenie vnútorného pnutia oceľové tyče pre predpätého betónu Kravaty
NORMA vydaná dňa 15.1.2011
Označenie normy: ASTM A911/A911M-11
Poznámka: NEPLATNÁ
Dátum vydania normy: 15.1.2011
Kód tovaru: NS-4774
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
low-relaxation bars, prestressed concrete, railroad ties, steel bars, stress-relieved, Uncoated steel, Concrete reinforcement--specifications, Prestressed concrete, Rail steel bars, Steel bars (concrete reinforcement- specifications), Steel wire (prestressed concrete), ICS Number Code 77.140.15 (Steels for reinforcement of concrete)
1. Scope | ||||||||
1.1 This specification covers uncoated stress-relieved steel bars for use in prestressed concrete railroad ties. 1.2 A supplementary requirement (S1) is provided for use where low-relaxation bars and relaxation testing for that product is required by the purchaser. The supplementary requirement applies only when specified in the purchase order or contract. 1.3 This specification is applicable for orders in either inch-pounds units (as Specification A911) or in SI units (as Specification A911M). 1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standards. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. |
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2. Referenced Documents | ||||||||
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