Optimisation of quinary blended supplementary cementitious material for eco-friendly paving unit using taguchi orthogonal array design

Awolusi, T.F.; Taiwo, Abiola Ezekiel; Aladegboye, O. J.; Oguntayo, Daniel; Akinkurolere, O.O.

doi:10.1016/j.matpr.2022.06.263

Cited by 6 publications

(4 citation statements)

References 10 publications

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“…and human resources, and has been applied in various fields such as engineering, biote nology, and manufacturing [7][8][9][10].…”

Section: Configuration Of Experimentsmentioning

confidence: 99%

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Determination of an Optimal Parameter Combination for Single PEMFC Using the Taguchi Method and Orthogonal Array

Jung,

Lee

2024

Energies

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In this study, the optimization of the operational parameters for a single proton exchange membrane fuel cell (PEMFC) was carried out using the Taguchi method and orthogonal array. The operating parameters were H2 stoichiometry, air stoichiometry, cell temperature, and back pressure of the anode∙cathode, each with three levels. The performance of the PEMFC, operated according to the L9 orthogonal arrangement, was evaluated through I–V curves at a step-up current loading ranging from 0.1 to 0.7 A/cm2. The results indicated that the anode∙cathode back pressure had the greatest sensitivity to the output voltage compared to the other operating parameters. Increasing the back pressure resulted in higher current output densities at higher values than those applied in the orthogonal arrangement. As the back pressure increased, the output voltage tended to increase at each current density. However, for operating conditions above 150 kPa, the improvement in cell performance was either not significant or tended to decrease. Therefore, it can be concluded that the Taguchi method and orthogonal array are effective tools for selecting the optimal operating conditions for PEMFC.

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“…and human resources, and has been applied in various fields such as engineering, biote nology, and manufacturing [7][8][9][10].…”

Section: Configuration Of Experimentsmentioning

confidence: 99%

“…Consequently, this allows for the enhancement in product quality and the diminution of associated costs. This approach is effective in terms of manpower, cost, and human resources, and has been applied in various fields such as engineering, biotechnology, and manufacturing [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Determination of an Optimal Parameter Combination for Single PEMFC Using the Taguchi Method and Orthogonal Array

Jung,

Lee

2024

Energies

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“…Numerous wastes are now incorporated into concrete due to the demand for sustainability in the construction industry [1,[3][4][5][6][7]. One such waste is PET bottle powder obtained from PET bottles.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Concrete Containing Polyethylene Terephthalate Powder and Rice Husk Ash Using Response Surface Methodology

Awolusi

Oguntayo

Aladegboye

et al. 2023

Journal of Engineering

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The continuous increase in population, advancement in technology, and affluence have influenced the amount of biodegradable and nonbiodegradable waste generated. Studies have shown that the utilization of different wastes in concrete is imperative to reduce the long-term environmental problems associated with their handling and management. This study evaluates the performance of concrete incorporating polyethene terephthalate powder (PETp) and rice husk ash (RHA) as supplementary cementitious materials varied at 0%, 7.5%, and 15%. Results indicated that the presence of PETp reduces workability while increasing the content of both PETp and RHA decreased the compressive and flexural strengths. A few studies have demonstrated the prediction and optimization of PETp as a fine aggregate. This study explores the central composite design of response surface methodology in optimizing the fresh and hardened properties of concrete incorporating PETp and RHA. The results indicate that workable concrete can be achieved with an RHA content higher than the PETp content. The analysis of variance provided effective models with good prediction capabilities. The simulated values from the models were close to those obtained experimentally. An optimal percentage of 5.76% PETp and 9.45% RHA was obtained for predicted responses and validated with a good level of accuracy. An overview of the different combinations of RHA and PETp indicates that concrete incorporating only RHA had the tendency to absorb the least water and exhibit low voids. However, the combination of 7.5% RHA and 7.5% PETp had a reduced water absorption when compared with a concrete mix containing 15% of either supplementary cementitious material. In general, eco-friendly concrete with improved durability can be produced by incorporating PETp and RHA.

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“…The addition of recycled waste materials as supplementary cementitious materials (SCM) in concrete production affects different concrete properties compared to that of normal concrete. The use of SCMs in suitable proportions in concrete is increasingly becoming inevitable as they provide technical, economic and environmental advantages [19,20]. These advantages result from the reduction in clinker consumption and enhanced utilization of agricultural/industrial by-products [21].…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Flexural Behavior of Bamboo Reinforced Concrete Beams Containing Cassava Peel Ash using Response Surface Methodology

Awolusi,

Aladegboye,

Babalola

et al. 2023

Civ Eng J

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The growing concern to reduce global warming has necessitated the use of more eco-friendly materials in construction. The study is focused on the utilization of cassava peel ash as supplementary cementitious material and bamboo as reinforcement in concrete beams. The response surface methodology approach was explored to determine the effect of simultaneously varying the cassava peel ash content, bamboo size, beam length, and beam depth on the flexural strength and strain of beams. An analysis of variance was carried out on experimentally obtained results to determine the accuracy of the obtained models and the contributions made by the linear interaction and quadratic terms on flexural strength and flexural strain. The coefficient of determination obtained for RSM models showed a good correlation between all predicted and experimentally obtained results. The optimum conditions obtained for bamboo-reinforced concrete containing cassava peel ash were 3% cassava peel ash, 16 mm bamboo diameter, 500 mm beam length, and 150 mm beam depth. The predicted flexural strengths were 11.85, 14.34, and 14.95 N/mm2 and flexural strains of 0.64, 0.67, and 0.91 for 28 days, 56 days, and 90 days, respectively. To validate the model prediction, a laboratory experiment was conducted using the optimum mix design proportion. From the results obtained, it was observed that the experimental results were close to those predicted by the models. These models can be efficiently used for simulating the flexural behavior of bamboo-reinforced concrete beams. Doi: 10.28991/CEJ-2023-09-08-011 Full Text: PDF

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Optimisation of quinary blended supplementary cementitious material for eco-friendly paving unit using taguchi orthogonal array design

Cited by 6 publications

References 10 publications

Determination of an Optimal Parameter Combination for Single PEMFC Using the Taguchi Method and Orthogonal Array

Determination of an Optimal Parameter Combination for Single PEMFC Using the Taguchi Method and Orthogonal Array

Optimization of Concrete Containing Polyethylene Terephthalate Powder and Rice Husk Ash Using Response Surface Methodology

Optimizing the Flexural Behavior of Bamboo Reinforced Concrete Beams Containing Cassava Peel Ash using Response Surface Methodology

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