Experimental and Analytical Investigation on The Effect of Steel Fibers on The Mechanical Properties and Performance of Fibrous Self-Compacting Concretes
Using self-compacting concrete is being developed due to its advantages. Also, the high-performance concrete has attracted a lot of researcher attention because of its special characteristics. In this research, a comprehensive experimental investigation is performed on the mechanical and flowability of high-performance self-compacting concrete. In this article, nine mix compositions were cast and tested. In mechanical properties part, the compressive strength test, splitting tensile strength and flexural strength test were done on the specimens. In the durability and flowability part, J-Ring and ultra-sonic pulse velocity (UPV) tests were conducted on the specimens. According to the results, the effects of fiber on tensile and flexural strength was significantly more than the compressive strength. On the other hand, the addition of fibers had negative effects on the workability and UPV results. Finally, to calculate the tensile and flexural strength of specimens versus compressive strength, the relationships were proposed.
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