Determination of the mechanical properties of recycled brick aggregate concrete by multivariate regression analysis
This study presents regression models for prediction of compressive strength and modulus of elasticity, applying variables such as the percentage of recycled brick aggregate replacement, cement content, and water-cement ratio. A comprehensive database was constructed, comprising data from 180 experi...
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| Format: | Article |
| Language: | English |
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Josip Juraj Strossmayer University of Osijek, Faculty of Civil Engineering and Architecture Osijek, Croatia
2024-01-01
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| Series: | Advances in Civil and Architectural Engineering |
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| Online Access: | https://hrcak.srce.hr/ojs/index.php/acae/article/view/30703/17172 |
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| author | Nikolina Karakaš Janjić Tanja Kalman Šipoš Mirta Benšić |
| author_facet | Nikolina Karakaš Janjić Tanja Kalman Šipoš Mirta Benšić |
| author_sort | Nikolina Karakaš Janjić |
| collection | DOAJ |
| description | This study presents regression models for prediction of compressive strength and modulus of elasticity, applying variables such as the percentage of recycled brick aggregate replacement, cement content, and water-cement ratio. A comprehensive database was constructed, comprising data from 180 experimental tests conducted on recycled brick aggregate concrete. The database includes the findings of compressive strength and modulus of elasticity testing. Multivariate statistical analysis was performed on the data and prediction models were created. During the review of the existing literature, a research gap was observed, where the modulus of elasticity was always expressed with dependence on compressive strength. The modulus of elasticity and compressive strength are modelled separately using the values of the contents of the concrete mixture. From the derived equations, the relationship that the modulus of elasticity is the second root of the compressive strength is recognized, which is in accordance with the functional relationships of the modulus of elasticity and compressive strength determined by previous authors. These models were then evaluated and confirmed using a subset of 20 samples for compressive strength and 13 samples for modulus of elasticity, which were excluded from the main database. The main results confirmed the applicability of the proposed equations with acceptable accuracy for initial concrete mixtures and thus, can be used as guidelines by future researchers. |
| format | Article |
| id | doaj-art-7f86f210ba66458690b74a605c51ed4e |
| institution | Kabale University |
| issn | 2975-3848 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Josip Juraj Strossmayer University of Osijek, Faculty of Civil Engineering and Architecture Osijek, Croatia |
| record_format | Article |
| series | Advances in Civil and Architectural Engineering |
| spelling | doaj-art-7f86f210ba66458690b74a605c51ed4e2025-01-10T09:30:12ZengJosip Juraj Strossmayer University of Osijek, Faculty of Civil Engineering and Architecture Osijek, CroatiaAdvances in Civil and Architectural Engineering2975-38482024-01-01152915116710.13167/2024.29.10Determination of the mechanical properties of recycled brick aggregate concrete by multivariate regression analysisNikolina Karakaš Janjić0Tanja Kalman Šipoš1Mirta Benšić2OSIJEK-KOTEKS d.d., Šamačka ulica 11, HR-31000 Osijek, CroatiaFaculty of Civil Engineering and Architecture Osijek, Josip Juraj Strossmayer University of Osijek, Vladimir Preloga St. 3, HR-31000 Osijek, CroatiaDepartment of Mathematics, Josip Juraj Strossmayer University of Osijek, Gajev trg 6, HR-31000 Osijek, CroatiaThis study presents regression models for prediction of compressive strength and modulus of elasticity, applying variables such as the percentage of recycled brick aggregate replacement, cement content, and water-cement ratio. A comprehensive database was constructed, comprising data from 180 experimental tests conducted on recycled brick aggregate concrete. The database includes the findings of compressive strength and modulus of elasticity testing. Multivariate statistical analysis was performed on the data and prediction models were created. During the review of the existing literature, a research gap was observed, where the modulus of elasticity was always expressed with dependence on compressive strength. The modulus of elasticity and compressive strength are modelled separately using the values of the contents of the concrete mixture. From the derived equations, the relationship that the modulus of elasticity is the second root of the compressive strength is recognized, which is in accordance with the functional relationships of the modulus of elasticity and compressive strength determined by previous authors. These models were then evaluated and confirmed using a subset of 20 samples for compressive strength and 13 samples for modulus of elasticity, which were excluded from the main database. The main results confirmed the applicability of the proposed equations with acceptable accuracy for initial concrete mixtures and thus, can be used as guidelines by future researchers.https://hrcak.srce.hr/ojs/index.php/acae/article/view/30703/17172recycled aggregatemultivariate regression analysiscrushed brickcompressive strengthmodulus of elasticity |
| spellingShingle | Nikolina Karakaš Janjić Tanja Kalman Šipoš Mirta Benšić Determination of the mechanical properties of recycled brick aggregate concrete by multivariate regression analysis Advances in Civil and Architectural Engineering recycled aggregate multivariate regression analysis crushed brick compressive strength modulus of elasticity |
| title | Determination of the mechanical properties of recycled brick aggregate concrete by multivariate regression analysis |
| title_full | Determination of the mechanical properties of recycled brick aggregate concrete by multivariate regression analysis |
| title_fullStr | Determination of the mechanical properties of recycled brick aggregate concrete by multivariate regression analysis |
| title_full_unstemmed | Determination of the mechanical properties of recycled brick aggregate concrete by multivariate regression analysis |
| title_short | Determination of the mechanical properties of recycled brick aggregate concrete by multivariate regression analysis |
| title_sort | determination of the mechanical properties of recycled brick aggregate concrete by multivariate regression analysis |
| topic | recycled aggregate multivariate regression analysis crushed brick compressive strength modulus of elasticity |
| url | https://hrcak.srce.hr/ojs/index.php/acae/article/view/30703/17172 |
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