Strength Characteristics Analysis of Concrete Reinforced With Lathe Machine Scrap
Authors: Zeeshan Nissar Qureshi1, Yawar Mushtaq Raina2, Syed Mohd Asgar Rufaie3
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The aim of the paper was to study the feasibility of using lathe machine scrap in concrete by checking the compressive strength, splitting tensile strength, flexural strength and load deflection characteristics. All these parameters were found out by varying proportions of lathe machine by 0%, 1 %, 1.5% and 2% by weight in M20 concrete. Thus finding out optimum percentage of lathe machine scrap in concrete up to which its mechanical properties like compressive strength, splitting tensile strength, flexural strength can be increased. All the tests were conducted by following the guidelines set by Indian Standard. The compressive strength was found out to be 25.5N/mm2, 26.8N/mm2, 28.4N/mm2 and 23.33N/mm2 for 0%, 1 %, 1.5% and 2% lathe machine scrap reinforcement respectively. The splitting tensile strength was 2.85N/mm2, 3.04N/mm2, 3.37N/ mm2 and 2.94N/mm2, where as flexural strength were 4.33N/mm2, 5N/mm2, 5.66N/mm2 and 4.83N/mm2 for 0%, 1 %, 1.5% and 2% lathe machine scrap reinforcement respectively. The strength properties of concrete were increasing by adding lathe machine scrap up to 1.5 % by weight in concrete after this slight reduction in strength properties of concrete was noticed. The compressive, split tensile and flexure strengths were increasing by 11.37 %, 18% and 30 % for optimum percentage of lathe machine scrap which was found to be 1.5%. The load carrying capacity of beam at same percentage of lathe machine scrap was found to be 5.66kN and deflection which was also maximum among all percentages was 7mm. Lathe machine scrap was found to be strong and environmental friendly material which can improve structural strength of concrete, decrease steel reinforcements besides, reducing width of cracks when used as reinforced material in concrete.
Keywords— Lathe Machine Scrap, Compressive Strength, Split Tensile Strength, Flexural Strength, Concrete, workability, deflection, Fiber reinforcement,