Mechanical Properties of Concrete Using Iron Waste as a Partial Replacement of Sand

Authors: Krikar M-Gharrib Noori¹ & Hawkar Hashim Ibrahim^2
1Koya Technical Institute, EPU, Iraq
²Salahaddin University, Erbil, Iraq

Abstract:  The utilising of iron waste in concrete as a partial replacement of sand is attaining enormous significance nowadays, mostly because of the improvement in the strength of concrete and environmental benefits. The aim of this study is to assess the possibility of applying iron waste in different percentages (6%, 12%, 18%, 24%, and 30%) as fine aggregate replacement of sand to increase the strength of concrete. For this purpose, the mix proportion was designed as (1:2.12:2.37) for giving 33 MPa of compressive strength of concrete at 28 days of curing. In order to achieve the goal of the study, laboratory experiments, compressive strength, and flexural tensile strength were conducted to determine the influence of iron waste on the strength of concrete. Thus, based on this study, the progress of strength with the percentages of iron waste in different time was plotted. According to the results, it can be found that 12% of iron waste is more efficient than the other percentages in both compressive and flexural strength because it obtains the maximum strength in the shortest time, and it seems that increasing iron waste more than 12% leading to decrease the strength of the concrete.

Keywords: Concrete, Sand Replacement, Iron Waste, Compressive Strength, Flexural Tensile Strength

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doi: 10.23918/eajse.v3i3p75

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