Evaluation of Bond-Slip Behavior of Twisted Wire Strand Steel Fibers Embedded in Cement Matrix

The paper reviews the investigation of the bond stress versus slip behavior of steel fibers cut from twisted wire strands; the behavior is then compared to that of a single triangular steel fiber twisted along its axis. The parameters investigated are: the embedded length of the fiber in the matrix; the number of individual wires making a strand fiber; the pitch distance of the fiber; the compressive strength of the mortar matrix; and the tensile strength of the fiber.