NF A35-045-4

Prestressing steels - Part 4 : bar

Le présent document spécifie les prescriptions particulières relatives aux barres de précontrainte en acier. Il définit la désignation, les traitements, les caractéristiques technologiques, géométriques et mécaniques en traction, l'énergie de rupture en flexion par choc, la relaxation isotherme, la résistance à la fatigue sous force axiale et à la corrosion sous contrainte, l'échantillonnage et épreuve de contrôle de réception des barres non certifiées, avec l'interprétation des résultats. Le présent document fait partie d'une série de quatre normes dont la Partie 1 traite des prescriptions générales, la Partie 2 des fils et la Partie 3 des torons.

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