Effect of Typha Australis Aggregate on the Mechanical Strength of Concrete
Brahim TCHOU1, Abdallah DADI MAHAMAT2, Malloum Soultan3, Abakar ALI4, Salif GAYE5
1Brahim TCHOU, Researcher, Department of Electrical, National Higher Institute of Science and Technology of Abeche, Ouaddai, Chad.
2Abdallah DADI MAHAMAT, Researcher, Department of Energy Engineering, National Higher Institute of Science and Technology of Abeche, Chad.
3Mallaoum Soultan, Researcher, Department of Mechanical Engineering, University of N’Djamena, N’djamena Chad.
4Abakar Ali, Researcher, Department of Civil Engineering, National School of Public Works, N’djamena, Chad.
5Salif Gaye, Professor, Department of Mechanical Engineering, IUT of the University of Thies, Senegal.
Manuscript received on 18 April 2025 | First Revised Manuscript received on 07 May 2025 | Second Revised Manuscript received on 20 May 2025 | Manuscript Accepted on 15 June 2025 | Manuscript published on 30 June 2025 | PP: 19-24 | Volume-14 Issue-7, June 2025 | Retrieval Number: 100.1/ijitee.F109414060525 | DOI: 10.35940/ijitee.F1094.14070625
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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: As part of this work, different dosages of Typha Australis aggregate, mixed with fine sand from the Chari River in the city of N’Djamena and cement, were used to formulate samples of typha concrete that we characterized with a view to its use in construction. With this in mind, we carried out a particle size analysis of the sand. This allowed us to notice that the soil is purely sandy and has good characteristics for manufacturing concrete. The proportions of Typha used fluctuate between 0.5% and 5% in steps of 0.5. On the other hand, we produced sixty-six (66) prismatic samples (for each scenario) measuring 4x4x16cm, with Typha percentages ranging from 0.5% to 5% in steps of 0.5, and control samples with no Typha additives for each scenario. We carried out two analysis scenarios. In the first scenario, S1, the ratio of cement to sand is 1/4, while in the second scenario, S2, the ratio of cement to sand is 1/3. The study focuses on the curing processes after 7 and 28 days. The results obtained showed that the Typha concrete studied has the required mechanical characteristics, making it a practical material for use in partitions and partitions, as well as in low load-bearing structures for low heights, since increasing the proportion of Typha decreases the mechanical characteristics, making the concrete less suitable. The flexural test shows a strength of 1.05 MPa for the S1 series on the 7th day and 1.28 MPa for the S2 series on the 28th day. The compressive test indicates strength of 0.32 MPa for the S1 series on the 7th day and 0.33 MPa for the S2 series on the 28th day. The results indicate that incorporating Typha into the concrete develops a material suitable for use as wall infill.
Keywords: Typha Australis; Cement; Chari River Sand; Mechanical Characterization.
Scope of the Article: Mechanical Engineering and Applications