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ASTM A881/A881M-23
Standard Specification for Steel Wire, Indented, Low-Relaxation for Prestressed Concrete
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STANDARD published on 1.9.2023
The information about the standard:
Designation standards: ASTM A881/A881M-23
Publication date standards: 1.9.2023
SKU: NS-1154803
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM A881/A881M-23 :
This specification covers uncoated, deformed, stress-relieved, and low-relaxation wire for use as prestressed tendons in concrete railroad ties. Deformed wires with nominal diameters shall be supplied in coils and shall conform to specified values of breaking strength requirements. The relaxation losses of normal stress-relieved and low-relaxation stress-relieved wires should not exceed the specified limits. The two acceptable types of deformed wire shall have specific dimensions of deformations, where the depth of indent shall be the average depth of six or more random indents measured at maximum depth. The material shall be tested on and shall conform to specified values of the following mechanical properties: breaking strength, load at 1% extension, elongation, bending, and relaxation.
Keywords:
indented wire, low-relaxation wire, prestressed concrete, steel wire (tendon),, ICS Number Code 77.140.15 (Steels for reinforcement of concrete)
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