Structural Performance of Reinforced Concrete Slab with Sugarcane Bagasse Ash and Plastic Flakes as Partial Replacement
Charity Aliyinza1, Christopher Kanali2, Erick Ronoh3
1Charity Aliyinza, Department of Civil Engineering, Pan African University Institute of Science, Technology and Innovation, Nairobi, 00100, Kenya.
2Prof. Christopher Kanali, Department of Agricultural and Biosystems Engineering, Jomo Kenyatta University of Agriculture and Technology, Nairobi, 00100, Kenya.
3Dr. Eng. Erick Ronoh, Department of Agricultural and Biosystems Engineering, Jomo Kenyatta University of Agriculture and Technology, Nairobi, 00100, Kenya.
Manuscript received on 13 February 2024 | Revised Manuscript received on 20 February 2024 | Manuscript Accepted on 15 April 2024 | Manuscript published on 30 April 2024 | PP: 9-18 | Volume-13 Issue-4, April 2024 | Retrieval Number: 100.1/ijeat.D439213040424 | DOI: 10.35940/ijeat.D4392.13040424
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This research aims to reduce the weight of concrete structural members and promote the use of eco-friendly concrete. To achieve this, plastic flakes and sugarcane bagasse are used as additional materials in concrete production, which can partially replace fine aggregates and cement, respectively. This makes structural members lighter, reducing the overall load transmitted to the foundation and the construction cost. The study investigates the effect of plastic flakes and sugarcane bagasse ash on the performance of a reinforced concrete slab. It includes workability, compressive, flexural, and tensile strengths, as well as water absorption, of different mix proportions in the fresh state. Various percentages of sugarcane and plastic flake replacements for cement and fine aggregates are also investigated. The results show that the 5% SCBA and 5% plastic flake replacement ratio has better mechanical properties compared to the control concrete and other mix ratios. This ratio is used in casting the reinforced concrete slab, whose structural behavior is then investigated in terms of ultimate load, ultimate deflection, load-deflection relationship, and crack patterns. The study shows that incorporating sugarcane bagasse ash and plastic flakes as partial replacements improves the bearing capacity of the ultimate load. Still, the slab portrays higher deflection than the control slab. The crack patterns appear in the tension zone of the slab, and the slab fails in flexion.
Keywords: Structural Performance, Concrete, Sugarcane Bagasse Ash (Scba), Plastic Flakes, Ordinary Portland Cement.
Scope of the Article: Structural Engineering