期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 24, 期 -, 页码 6391-6410出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2023.04.180
关键词
Waste foundry sand; Gene expression programming; Multi-expression programming; Solid waste; Sustainable construction
In this study, predictive models for the split tensile strength (STS) and elastic modulus (E) of waste foundry sand concrete (WFSC) were generated using gene expression programming (GEP) and multi-expression programming (MEP). The reliability and accuracy of the models were evaluated using various statistical indicators. The results showed that both GEP and MEP accurately predicted the E, but GEP performed better in predicting STS. The models showed excellent performance and generalization potential. The findings of this study can promote the use of waste foundry sand in sustainable concrete construction.
Waste foundry sand (WFS), a by-product of the casting industry, is a potential material that may be employed as a substitute for fine aggregate in concrete. In the present study, gene expression programming (GEP) and multi-expression programming (MEP) are used to generate predictive models for the split tensile strength (STS) and elastic modulus (E) of waste foundry sand concrete (WFSC). Therefore, a comprehensive database was collected that contains 146 and 242 values of E and STS, respectively. Seven different variables were chosen as input for the development of the ML-based models. The reliability and accuracy of the proposed model were evaluated by using various statistical indicators. Given the performance assessment, both GEP and MEP accurately predict the E with a correlation of 0.994 and 0.996, respectively. However, GEP performance was much superior in predicting STS (R 1/4 0.987) as compared to the MEP model (R 1/4 0.892). The integrated statistical performance (r, OF) of both models approaches zero, indicating the excellent performance and generalization potential of the developed models. For the interpretation of machine learning (ML) models, Shapley additive explanation (SHAP) was used to know about the input variables' importance and influence on the output parameter. The SHAP analysis revealed that a higher ratio of FA/TA results in the enhancement of the elastic modulus, whereas CA/C higher ratio is favorably influencing the split tensile strength up to some extent, however, this trend changes when the ratio is further increased. These soft computing prediction techniques can incentivize the use of WFS in sustainable concrete, reducing waste disposal and promoting environment-friendly construction. Furthermore, it is recommended that the findings of this study be validated with more extensive data sets and that other ML techniques be investigated. & COPY; 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据