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 inch (2.5 mm) at the free-end of the strand.
WJE laboratories are accredited by ANAB (ISO/IEC 17025) to perform testing standard ASTM A1081 for Evaluating Bond of Seven-Wire Steel Prestressing Strand.
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KeywordsASTM A1081 - Bond Strength - Building Design and Construction - Construction - Mortars - Steel Wire Strands - Tensile Test - Wires, Wire Strands, and Wire Ropes
ICS CODE77.140.65 (Steel wire, wire ropes, and link chains)
UNSPSC CODE31152208 (Prestressed concrete stranded steel wire)
ASTM A1081 / A1081M-15, Standard Test Method for Evaluating Bond of Seven-Wire Steel Prestressing Strand, ASTM International, West Conshohocken, PA, 2015, www.astm.org