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Computers and Concrete Volume 25, Number 1, January 2020 , pages 83-94 DOI: https://doi.org/10.12989/cac.2020.25.1.083 |
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Prediction of fly ash concrete compressive strengths using soft computing techniques |
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Rajeshwari Ramachandra and Sukomal Mandal
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| Abstract | ||
| The use of fly ash in modern-day concrete technology aiming sustainable constructions is on rapid rise. Fly ash, a spinoff from coal calcined thermal power plants with pozzolanic properties is used for cement replacement in concrete. Fly ash concrete is cost effective, which modifies and improves the fresh and hardened properties of concrete and additionally addresses the disposal and storage issues of fly ash. Soft computing techniques have gained attention in the civil engineering field which addresses the drawbacks of classical experimental and computational methods of determining the concrete compressive strength with varying percentages of fly ash. In this study, models based on soft computing techniques employed for the prediction of the compressive strengths of fly ash concrete are collected from literature. They are classified in a categorical way of concrete strengths such as control concrete, high strength concrete, high performance concrete, self-compacting concrete, and other concretes pertaining to the soft computing techniques usage. The performance of models in terms of statistical measures such as mean square error, root mean square error, coefficient of correlation, etc. has shown that soft computing techniques have potential applications for predicting the fly ash concrete compressive strengths. | ||
| Key Words | ||
| concrete; fly ash; compressive strength; soft computing techniques | ||
| Address | ||
| Rajeshwari Ramachandra: Department of Civil Engineering, PES University, 100 feet Ring Road, Bengaluru-560040, India Sukomal Mandal: Department of Civil Engineering, PES University, 100 feet Ring Road, Bengaluru-560040, India; CSIR-NIO, Dona Paula, Goa- 403004, India | ||