Central composite design application in the optimization of the effect of pumice stone on lightweight concrete properties using RSM
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Central composite design application in the optimization of the effect of pumice stone on lightweight concrete properties using RSM
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| Автор |
Ali, M.
Kumar, A. Yvaz, A. Salah, B. |
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| Тематика |
CENTRAL COMPOSITE DESIGN APPLICATION
COMPRESSIVE STRENGTH LIGHTWEIGHT AGGREGATE CONCRETE PUMICE STONE RESPONSE SURFACE METHODOLOGY SPLIT TENSILE STRENGTH CONCRETE AGGREGATES LIGHT WEIGHT CONCRETE SURFACE PROPERTIES TENSILE STRENGTH AGGREGATE CONCRETE CENTRAL COMPOSITE DESIGN APPLICATION CENTRAL COMPOSITE DESIGNS COARSE AGGREGATES DESIGN APPLICATIONS LIGHTWEIGHT AGGREGATE CONCRETE LIGHTWEIGHT AGGREGATES PUMICE STONES RESPONSE-SURFACE METHODOLOGY SPLIT TENSILE STRENGTHS COMPRESSIVE STRENGTH |
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| Описание |
Among other lightweight aggregates, one choice is pumice stone (PS), which can replace coarse aggregates in concrete. In this study, the natural coarse aggregates are replaced by various percentages of PS in concrete to examine its physical and mechanical properties. Experiments are designed to prepare mixtures (by varying ratios of PS) using response surface methodology (RSM). Slump and compaction factor tests are used to investigate the fresh properties, such as the workability of concrete. In contrast, the hardened concrete properties are determined using compressive strength (CS), flexural strength (FS), and split tensile strength (STS). The experimental, optimization and validation of the model results show that up to 30% of the PS can be replaced in the lightweight aggregate concrete for 7 – 56 curing days in which the CS is greater than 15 MPa, STS is 7–12% of the CS, and FS is 9 – 11% of the CS. Therefore, the optimum CS for the current study ranges from 17 to 20 MPa, in which the STS is 9.39 – 10.54% of the CS, and FS ranges from 17.49% to 21.12% of the CS. The quadratic model was proposed, and the ANOVA and model fitness was produced through RSM, with the coefficient of determination (R2) above 0.99 (99%) for all three responses representing the high importance of the suggested model. Besides, the difference among the R2 and adjusted R2 was negligible, and the P-Value for CS, STS, and FS was below 0.05 (<0.0001), indicating the model's high relevance. RSM was used to improve the model, which was then verified in further lab trials. © 2023 The Authors
King Saud University, KSU: RSP2023R145 The authors would like to thank King Saud University , Riyadh, Saudi Arabia, for researchers supporting project number RSP2023R145 . |
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| Дата |
2024-04-05T16:17:07Z
2024-04-05T16:17:07Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Ali, M, Kumar, A, Yvaz, A & Salah, B 2023, 'Central composite design application in the optimization of the effect of pumice stone on lightweight concrete properties using RSM', Case Studies in Construction Materials, Том. 18, e01958. https://doi.org/10.1016/j.cscm.2023.e01958
Ali, M., Kumar, A., Yvaz, A., & Salah, B. (2023). Central composite design application in the optimization of the effect of pumice stone on lightweight concrete properties using RSM. Case Studies in Construction Materials, 18, [e01958]. https://doi.org/10.1016/j.cscm.2023.e01958 2214-5095 Final All Open Access, Gold https://www.scopus.com/inward/record.uri?eid=2-s2.0-85149622401&doi=10.1016%2fj.cscm.2023.e01958&partnerID=40&md5=fcd6e3268880836a3191564f31506d3b https://doi.org/10.1016/j.cscm.2023.e01958 http://elar.urfu.ru/handle/10995/130262 10.1016/j.cscm.2023.e01958 85149622401 000951388800001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Elsevier Ltd
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| Источник |
Case Studies in Construction Materials
Case Studies in Construction Materials |
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