THE JOURNAL OF KMUTNB

Volume 31, No. 04, Month OCTOBER, Year 2021, Pages 700 - 710

Mechanical properties and material cost of concrete reinforced with steel fibers with different tensile strengths

Suriyawan Kongtun, Piti Sukontasukkul, Wisoot Jiradamkerng

Abstract Download PDF

This research aimed to investigate and compare the mechanical properties and material cost of concrete reinforced with steel fibers of different tensile strengths at different proportions. Three types of fibers with different tensile strengths of 1,225, 1,800 and 2,300 MPa were mixed with concrete at three different proportions 30, 40, and 50 kg/m3. Three types of concrete of the compressive strength of 28, 35 and 60 MPa were used. The specimens were tested for the compressive strength at the age of 28 days. The obtained results were analyzed based on the effect of fiber types and contents on the obtained compressive strength of SFRC cast with concrete with different based strength. The economic analysis provided the outlook of how to reduce the material cost by selecting an appropriate type and content of fiber to obtain the required compressive strength at the optimum material cost.

Keywords

Steel Fiber Reinforced Concrete; Compressive Strength of SFRC; Tensile Strength of Fiber; Economic Analysis; Material Cost

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