Effect of Length and Percentage of Dispersed Steel Wire on Compressive Strength of Concrete

Increasing the bearing capacity of concrete as well as improving some mechanical properties in concrete such as resistance to impact, reducing cracks, increasing tensile strength, and increasing the lifetime of use of concrete with different fibers such as Dramix steel fiber, glass fiber, synthetic fiber, natural fiber, and so on is one way of reaching these goals. Usually, Dramix steel fibers are made at the factory and added to concrete to make steel fiber concrete. In this paper, the study used steel wires instead of Dramix steel fibers to investigate at the mechanical characteristics of steel wires concrete. The percentage of steel wire included in the concrete varied from 0 to 3% in lengths of 30 mm, 40 mm, and 50 mm. The lengths were measured in millimeters. According to the results of the experiments, the optimal combination of steel wire length and percentage is 30 mm long fibers with a steel wire percentage of two percent. The compressive strength of the material being tested increased significantly, increasing from 27.83 MPa to 32.8 MPa as a result of this change in length as well as quantity.