Standard Test Methods for Testing Multi-Wire Steel Prestressing Strand

Importancia y uso:

4.1 The breaking strength and elongation of the strand are determined by one or more tensile tests in which fracture of the specimen ideally occurs in the free span.

4.2 Mechanical properties of the strand will be negatively affected if proper care is not taken to prevent damage such as severe bending, abrasion, or nicking of the strand during sampling.

4.3 Premature failure of the test specimens may result if there is appreciable notching, cutting, or bending of the specimen by the gripping devices of the testing machine.

4.4 Errors in testing will result if the wires constituting the strand are not loaded uniformly.

4.5 The mechanical properties of the strand will be materially affected by excessive heating during test specimen collection or preparation.

Subcomité:

A01.05

Referida por:

A0416_A0416M-24, A0779_A0779M-16, A0416_A0416M-24, A0370-24, A0416_A0416M-24, A1114_A1114M-20, A0886_A0886M-24, A0882_A0882M-20, A0910_A0910M-18, A0370-24

Volúmen:

01.04

Número ICS:

77.140.15 (Steels for reinforcement of concrete)

Palabras clave:

multi-wire steel prestressing strand; strand-gripping devices; strand mechanical properties;