Standard Test Method for Evaluating Bond of Seven-Wire Steel Prestressing Strand

Importancia y uso:

5.1 Prestressing steel strand is used in pre-tensioned and post-tensioned concrete construction.

5.2 In pre-tensioned concrete applications, the prestressing steel strand is expected to transfer prestressing forces to the structural member by means of the adhesion (that is, bond) of the exposed wire strand surfaces to the surrounding cementitous material.

5.3 Manufacturing processes, subsequent handling, and storage conditions can influence the strand bond.

5.4 Prestressing steel strand is used in construction applications with a variety of concrete mixtures. Developing tests and threshold values for the performance of the strand in each of these unique mixtures is impractical.

Subcomité:

A01.05

Volúmen:

01.04

Número ICS:

77.140.65 (Steel wire, wir ropes and link chains)

Palabras clave:

bond test; prestressing steel strand; seven-wire strand;