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Recycling of Disposal Syringe Needles to Produce Fiber Reinforced Concrete

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Medical waste is considered an hazardous waste. This paper includes an experimental investigation to find the ability of producing fiber reinforced concrete by adding used syringe needles to concrete. The effect of adding syringe needles to concrete mixture on its physical and mechanical properties has been studied. The properties of concrete with syringe needles have been compared with plain concrete and the one with industrial steel fibers. Concrete properties have been  effected as syringe needles have been added to the mixture. Concrete tensile and flexural strength have increased by 1.47% and 0.95 % respectively, while the compressive strength and density have decreased by 2.85% and 1.52 % respectively. Adding industrial steel fibers to concrete have increased its tensile strength,  its flexural strength, its compressive strength and its density by 7.28 %, 6.25%, 3.93 % and 1.25%  respectively. The recorded slump results for the three mixtures showed that the needle fibers mix. has been the most stiff one by 5.2 cm of slump, while the steel fibers mix slump has been 7.3 cm. Compared to the reference mix slump (9 cm) the needle fibers mix.  recorded the lowest slump value.
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Disposal Syringe Needles; Fiber Reinforced Concrete; Hazardous Waste; Medical Waste; Recycling

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