Abstract
The hybridization of two different elements is done for synergy and better performance. This study investigates the effects of combining bamboo, steel, and carpet fibers, as reinforcement in concrete. The steel and carpet fibers were obtained from discarded tires, and carpets, respectively. The addition of fibers to the mixes was kept constant at 2% of the concrete volume. The first category concrete mix contained a hybrid of steel and carpet fibers at a fraction of 1.75% and 0.25%, respectively, the second category combined steel and bamboo fibers at a fraction of 1% - 1%. The third category contained only steel fibers at a 2% volumetric fraction. The mechanical property of the concrete was evaluated through compressive and flexural strengths, while the durability was examined through water absorption and the acid attack. The compressive strength results obtained for the three categories of fiber reinforced concrete ranged between 7.2 and 12.8 N/mm2, with the third category performing better. Also, the flexural strength results ranged between 5.37 and 7.47 N/mm2, with the first category having the best results. The second category had the least water absorption capacity, and the concrete reinforced with only steel fibers showed the best acid attack resistance. The results also confirmed that short discontinuous fibers are suitable strength and durability enhancers in producing durable eco-friendly concrete.
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More From: IOP Conference Series: Materials Science and Engineering
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