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ASTM A1081/A1081M-15
- Standard Test Method for Evaluating Bond of Seven-Wire Steel Prestressing Strand
- standard by ASTM International, 11/01/2015
- Publisher: ASTM
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1.1 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.