Study on the effect of polypropylene fiber shape and admixture on the mechanical properties of concrete

The effect of three different shapes of PPF on the mechanical properties of concrete at different dosages was investigated. Cubic compressive ability test, split tensile ability test, and flexural ability test were conducted on polypropylene fiber concrete to analyze the effect of PPF on compressive ability, tensile compression ratio, and flexural compression ratio. The study shows that as the shape and admixture of polypropylene fibers have an impact on the compressive strength of concrete, monofilament-type polypropylene fibers will have the worst effect on the enhancement of the effect when the choice of a mixture of 0.90% of embossed polypropylene fibers on the role of the compressive ability of the concrete has the best effect. The concrete tensile compression ratio is mainly affected by the mixing amount of polypropylene fibers, and the main factors affect the concrete folding compression ratio of the polypropylene fibers of the shape of the main factors.