[This article belongs to Volume - 57, Issue - 02, 2025]
Gongcheng Kexue Yu Jishu/Advanced Engineering Science
Journal ID : AES-09-12-2025-27

Title : IMPACT OF STEEL FIBERS ON COMPRESSIVE AND TENSILE STRENGTH OF CONCRETE
Ahmed Mohamed Farah, Ahmed Mohamed Hassan

Abstract :

Concrete is one of the most consumed construction materials in the world due to its high compressive strength and durability. However, low tensile strength and susceptibility to cracking pose some challenges in structural applications. In overcoming this shortcoming, the reinforcement of concrete with fibers has emerged as a viable solution. This paper presents the effect of steel fibers on the compressive and tensile strength of concrete and its workability. Various dosages of steel fibers (1%, 1.5%, and 2% by volume) were mixed with the concrete mixture, and their performance was evaluated at 7, 21, and 28 days of curing. Experimental process involved frequent tests of compressive strength, tensile strength, and workability was conducted. It reflected that steel fibers raised compressive as well as tensile strength significantly. Compressive strength, in particular, increased from 16.73 N/mm² at 7 days in control mix (0% fiber) to 25.64 N/mm² at 28 days in 2% fiber mix. Similarly, the tensile strength was also improved from 3.24 N/mm² at 7 days to 4.39 N/mm² at 28 days for 2% fiber mixture, and this shows the positive influence of fibers in strengthening crack resistance as well as tensile performance. The study confirmed that steel fibers are useful to increase the compressive and tensile strength of concrete, and fiber-reinforced concrete can be applied potentially in those regions where strength, ductility, and crack resistance are of major concern. This study also indicates the significance of optimization of dosage of fibers to get optimum performance without interfering with the workability of concrete.