Gene-Expression Programming-Based Model for Estimating the Compressive Strength of Cement-Fly Ash Stabilized Soil and Parametric Study
The study aims to develop a reliable model using gene-expression programming (GEP) technique for estimating the unconfined compressive strength (<i>UCS</i>) of soil stabilization by cement and fly ash. The model considered the effects of several parameters, including the fly ash characte...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Infrastructures |
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| Online Access: | https://www.mdpi.com/2412-3811/6/12/181 |
| _version_ | 1797503627745558528 |
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| author | Van-Ngoc Pham Erwin Oh Dominic E. L. Ong |
| author_facet | Van-Ngoc Pham Erwin Oh Dominic E. L. Ong |
| author_sort | Van-Ngoc Pham |
| collection | DOAJ |
| description | The study aims to develop a reliable model using gene-expression programming (GEP) technique for estimating the unconfined compressive strength (<i>UCS</i>) of soil stabilization by cement and fly ash. The model considered the effects of several parameters, including the fly ash characteristics such as calcium oxide (CaO) content, CaO/SiO<sub>2</sub> ratio, and loss of ignition. The research results show that the proposed model demonstrates superior performance with a high correlation coefficient (<i>R</i> > 0.955) and low errors. Therefore, the model could be confidently applied in practice for a variety of fly ash qualities. Besides, the parametric study was conducted to examine the effect of fly ash characteristics on the strength of soil stabilization. The study indicates that if the fly ash contains a high amount of calcium oxide, the strength of fly ash stabilized soil is significant. In addition, fly ash could be used in combination with cement to increase the strength of the mixture. A fly ash replacement ratio is suggested from 0.19 to 0.35, corresponding to the total binder used from 10% to 30%. The research findings could help engineers in optimizing the fly ash proportion and estimating the <i>UCS</i> of soil stabilization by cement and fly ash. |
| first_indexed | 2024-03-10T03:53:24Z |
| format | Article |
| id | doaj.art-25eab2be888a4dc7893f5753accaa7fe |
| institution | Directory Open Access Journal |
| issn | 2412-3811 |
| language | English |
| last_indexed | 2024-03-10T03:53:24Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Infrastructures |
| spelling | doaj.art-25eab2be888a4dc7893f5753accaa7fe2023-11-23T08:52:03ZengMDPI AGInfrastructures2412-38112021-12-0161218110.3390/infrastructures6120181Gene-Expression Programming-Based Model for Estimating the Compressive Strength of Cement-Fly Ash Stabilized Soil and Parametric StudyVan-Ngoc Pham0Erwin Oh1Dominic E. L. Ong2School of Engineering and Built Environment, Griffith University, Gold Coast, QLD 4222, AustraliaSchool of Engineering and Built Environment, Griffith University, Gold Coast, QLD 4222, AustraliaSchool of Engineering and Built Environment, Griffith University, Gold Coast, QLD 4222, AustraliaThe study aims to develop a reliable model using gene-expression programming (GEP) technique for estimating the unconfined compressive strength (<i>UCS</i>) of soil stabilization by cement and fly ash. The model considered the effects of several parameters, including the fly ash characteristics such as calcium oxide (CaO) content, CaO/SiO<sub>2</sub> ratio, and loss of ignition. The research results show that the proposed model demonstrates superior performance with a high correlation coefficient (<i>R</i> > 0.955) and low errors. Therefore, the model could be confidently applied in practice for a variety of fly ash qualities. Besides, the parametric study was conducted to examine the effect of fly ash characteristics on the strength of soil stabilization. The study indicates that if the fly ash contains a high amount of calcium oxide, the strength of fly ash stabilized soil is significant. In addition, fly ash could be used in combination with cement to increase the strength of the mixture. A fly ash replacement ratio is suggested from 0.19 to 0.35, corresponding to the total binder used from 10% to 30%. The research findings could help engineers in optimizing the fly ash proportion and estimating the <i>UCS</i> of soil stabilization by cement and fly ash.https://www.mdpi.com/2412-3811/6/12/181fly ash stabilized soilgene-expression programmingunconfined compressive strengthparametric studyfly ash replacement ratio |
| spellingShingle | Van-Ngoc Pham Erwin Oh Dominic E. L. Ong Gene-Expression Programming-Based Model for Estimating the Compressive Strength of Cement-Fly Ash Stabilized Soil and Parametric Study Infrastructures fly ash stabilized soil gene-expression programming unconfined compressive strength parametric study fly ash replacement ratio |
| title | Gene-Expression Programming-Based Model for Estimating the Compressive Strength of Cement-Fly Ash Stabilized Soil and Parametric Study |
| title_full | Gene-Expression Programming-Based Model for Estimating the Compressive Strength of Cement-Fly Ash Stabilized Soil and Parametric Study |
| title_fullStr | Gene-Expression Programming-Based Model for Estimating the Compressive Strength of Cement-Fly Ash Stabilized Soil and Parametric Study |
| title_full_unstemmed | Gene-Expression Programming-Based Model for Estimating the Compressive Strength of Cement-Fly Ash Stabilized Soil and Parametric Study |
| title_short | Gene-Expression Programming-Based Model for Estimating the Compressive Strength of Cement-Fly Ash Stabilized Soil and Parametric Study |
| title_sort | gene expression programming based model for estimating the compressive strength of cement fly ash stabilized soil and parametric study |
| topic | fly ash stabilized soil gene-expression programming unconfined compressive strength parametric study fly ash replacement ratio |
| url | https://www.mdpi.com/2412-3811/6/12/181 |
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