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ASTM
A1081/A1081M-21
Standard Test Method for Evaluating Bond of Seven-Wire Steel Prestressing Strand
2021
5
ASTM Vol.01.04 (2022)
This test method describes procedures for determining the bond of seven-wire steel prestressing strand. The bond determined by this test method is stated as the tensile force required to pull the strand through the cured mortar in a cylindrical steel casing. The result of the test is the tensile force measured on the loaded-end of the strand corresponding to a movement of 0.1 in. [2.5 mm] at the free-end of the strand...