Incorporation of agricultural residues as partial substitution for cement in concrete and mortar – A review

Raheem, Akeem Ayinde; Ikotun, Bolanle D.

doi:10.1016/j.jobe.2020.101428

Cited by 57 publications

(36 citation statements)

References 61 publications

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“…Clinker reduction by replacing it with supplementary cementitious materials is the most effective, practical, and easily applicable to ready-mix concrete industry [ 10 ]. Different potential supplementary cementitious materials such as fine limestone (L) [ 11 ] fly ash (FA) [ 12 ], ground granulated blast furnace slag (GGBFS) [ 13 ], silica fume (SF) [ 14 ], volcanic ash [ 15 ] (VA), calcined clay (CC) [ 16 ], rice husk ash (RHA) [ 17 ], bagasse ash (BA) [ 18 ], waste glass sludge (WGS) [ 19 ], and nanosilica (NS) [ 20 ], among others, have been investigated for use as a potential substitute to clinker for the production of sustainable cement and concrete. In recent decades, granulated blast furnace slag (GBFS), a byproduct of the iron industry, and fly ash (FA), a byproduct of thermal coal plants, have been the most common clinker substitutes.…”

Section: Introductionmentioning

confidence: 99%

Compressive Strength Estimation of Fly Ash/Slag Based Green Concrete by Deploying Artificial Intelligence Models

et al. 2022

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Cement production is one of the major sources of decomposition of carbonates leading to the emission of carbon dioxide. Researchers have proven that incorporating industrial wastes is of paramount significance for producing green concrete due to the benefits of reducing cement production. The compressive strength of concrete is an imperative parameter to consider when designing concrete structures. Considering high prediction capabilities, artificial intelligence models are widely used to estimate the compressive strength of concrete mixtures. A variety of artificial intelligence models have been developed in the literature; however, evaluation of the modeling procedure and accuracy of the existing models suggests developing such models that manifest the detailed evaluation of setting parameters on the performance of models and enhance the accuracy compared to the existing models. In this study, the computational capabilities of the adaptive neurofuzzy inference system (ANFIS), gene expression programming (GEP), and gradient boosting tree (GBT) were employed to investigate the optimum ratio of ground-granulated blast furnace slag (GGBFS) and fly ash (FA) to the binder content. The training process of GEP modeling revealed 200 chromosomes, 5 genes, and 12 head sizes as the best hyperparameters. Similarly, ANFIS hybrid subclustering modeling with aspect ratios of 0.5, 0.1, 7, and 150; learning rate; maximal depth; and number of trees yielded the best performance in the GBT model. The accuracy of the developed models suggests that the GBT model is superior to the GEP, ANFIS, and other models that exist in the literature. The trained models were validated using 40% of the experimental data along with parametric and sensitivity analysis as second level validation. The GBT model yielded correlation coefficient (R), mean absolute error (MAE), and root mean square error (RMSE), equaling 0.95, 3.07 MPa, and 4.80 MPa for training, whereas, for validation, these values were recorded as 0.95, 3.16 MPa, and 4.85 MPa, respectively. The sensitivity analysis revealed that the aging of the concrete was the most influential parameter, followed by the addition of GGBFS. The effect of the contributing parameters was observed, as corroborated in the literature.

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Section: Introductionmentioning

confidence: 99%

Compressive Strength Estimation of Fly Ash/Slag Based Green Concrete by Deploying Artificial Intelligence Models

et al. 2022

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“…Supplementary cementitious materials, when partially incorporated with Portland cement, contribute to the fresh and hardened properties of concrete mixes through pozzolanic activity. Prior studies suggest that these supplementary cementitious materials, also known as SCMs, enhancing the quality of concrete mixes by improving slump flow and consistency, increase compressive strength at later curing ages, reducing bleeding, segregation, and heat of hydration, retarding the setting time for hot weather concreting, improving finishing and pumping capability, and reducing plastic shrinkage cracking [4,[9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Towards Sustainability: An Experimental and Analytical Investigation of an Agricultural Waste as a Pozzolanic Material in Concrete Mixtures

Belay

Woldesenbet

2022

Advances in Civil Engineering

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The aim of the current study was to explore the potential use of Ethiopian rice husk ash in concrete properties using various replacement levels. A detailed laboratory investigation was conducted to evaluate the chemical, physical, and mechanical properties of normal grade concrete specimens with the addition of finely grounded rice husk ash collected from Fogera Area, Ethiopia. Consequently, a total of 96 concrete cube specimens were molded in varying degrees of proportions of ground risk husk ash including 5%, 10%, 15%, and 20% replacement levels and 12 cube specimens with the addition of superplasticizing admixture. All concrete specimens were cured in a laboratory setting, and compressive strength results were recorded at 3, 7, 28, and 56 curing days. The findings reveal that the Ethiopian rice husk ash is suitable for 5% to 15% replacement levels. However, the slump flow and density of specimens’ tests show that the results have decreased with an increase in rice husk ash level of replacement. Further, the laboratory test results were then validated using a two-way factorial analysis of variance (ANOVA) and post hoc tests.

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“…The available waste in countries differs which in turn is subject to types of agricultural produce available in their various domain. Agricultural wastes are by-product obtained at the end of processing and consumption of farm produce and are so enormous amongst are: wheat, corn cob, guinea corn, need seed, groundnut shell and rice husk [4]. The rate of cultivation and consumption of rice is very high and consequently, the availability of its husk.…”

Section: Introductionmentioning

confidence: 99%

Effects of metakaolin and treated rice husk ash on the compressive strength of concrete

Abdulwahab¹,

Odeyemi²,

Alao³

et al. 2021

Res. Eng. Struct. Mater.

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DisclaimerAll the opinions and statements expressed in the papers are on the responsibility of author(s) and are not to be regarded as those of the journal of Research on Engineering Structures and Materials (RESM) organization or related parties. The publishers make no warranty, explicit or implied, or make any representation with respect to the contents of any article will be complete or accurate or up to date. The accuracy of any instructions, equations, or other information should be independently verified. The publisher and related parties shall not be liable for any loss, actions, claims, proceedings, demand or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with use of the information given in the journal or related means.Published articles are freely available to users under the terms of Creative Commons Attribution -NonCommercial 4.0 International Public License, as currently displayed at here (the "CC BY -NC").

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Incorporation of agricultural residues as partial substitution for cement in concrete and mortar – A review

Cited by 57 publications

References 61 publications

Compressive Strength Estimation of Fly Ash/Slag Based Green Concrete by Deploying Artificial Intelligence Models

Compressive Strength Estimation of Fly Ash/Slag Based Green Concrete by Deploying Artificial Intelligence Models

Towards Sustainability: An Experimental and Analytical Investigation of an Agricultural Waste as a Pozzolanic Material in Concrete Mixtures

Effects of metakaolin and treated rice husk ash on the compressive strength of concrete

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