EXPERIMENTAL STUDY ON STEEL FIBRE-REINFORCED NATURAL AGGREGATE CONCRETE

Daniel Kolo; Malachi Graham; Ashraf Milad

doi:10.59122/154CFC13

Daniel Kolo Department of Civil Engineering, Federal University of Technology, Minna, Nigeria
Malachi Graham Department of Civil Engineering, Federal University of Technology, Minna, Nigeria
Ashraf Milad Department of Civil Engineering, University of Bani Walied, Bani Walied City, Libya

Abstract

The rising volume of pollution is a significant threat to achieving the United Nations’ goal for a sustainable society. Various approaches have been used to tackle pollution, including recycling wastes into completely new products or utilizing them to improve other materials. In this respect, this article presents the results of an experimental study conducted on waste steel fiber sourced from waste tyres in concrete production. The fibers measuring 2, 4, and 6 cm were utilized using dosages of 0.5, 1, and 1.5% by mass of cement. The natural aggregate which is a bya -a product of the Precambrian deposits of the Bida trough was utilized as coarse aggregate. Iron moulds measuring 150 x 150 x 150mm were used for concrete production and were demoulded after 24 hours and cured. The optimum 28-day compressive strength of 27.19 N/mm2 was recorded with a 4 cm fiber length and 0.5% fiber content. This represented a 36.36% gain in the 28-day compressive strength of the concrete when compared to the control.

Keywords: Compressive Strength, Natural aggregate, Reinforced Concrete, Steel Fibre

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