Properties Evaluation of Composite Materials Based on Gypsum Plaster and Posidonia Oceanica Fibers
Estimating the amount of material without significant losses at the end of hybrid casting is a problem addressed in this study. To minimize manufacturing costs and improve the accuracy of results, a correction factor (CF) was used in the formula to estimate the volume percent of the material in orde...
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| Format: | Article |
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MDPI AG
2023-01-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/13/1/177 |
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| author | Abdessalam Guedri Kawthar Yahya Noureddine Hamdi Oscar Baeza-Urrea Jean-Frank Wagner Mohamed Faouzi Zagrarni |
| author_facet | Abdessalam Guedri Kawthar Yahya Noureddine Hamdi Oscar Baeza-Urrea Jean-Frank Wagner Mohamed Faouzi Zagrarni |
| author_sort | Abdessalam Guedri |
| collection | DOAJ |
| description | Estimating the amount of material without significant losses at the end of hybrid casting is a problem addressed in this study. To minimize manufacturing costs and improve the accuracy of results, a correction factor (CF) was used in the formula to estimate the volume percent of the material in order to reduce material losses during the sample manufacturing stage, allowing for greater confidence between the approved blending plan and the results obtained. In this context, three material mixing schemes of different sizes and shapes (gypsum plaster, sand (0/2), gravel (2/4), and Posidonia oceanica fibers (PO)) were created to verify the efficiency of CF and more precisely study the physico-mechanical effects on the samples. The results show that the use of a CF can reduce mixing loss to almost 0%. The optimal compressive strength of the sample (S1B) with the lowest mixing loss was 7.50 MPa. Under optimal conditions, the addition of PO improves mix volume percent correction (negligible), flexural strength (5.45%), density (18%), and porosity (3.70%) compared with S1B. On the other hand, the addition of PO thermo-chemical treatment by NaOH increases the compressive strength (3.97%) compared with PO due to the removal of impurities on the fiber surface, as shown by scanning electron microscopy. We then determined the optimal mixture ratio (PO divided by a mixture of plaster, sand, and gravel), which equals 0.0321 because Tunisian gypsum contains small amounts of bassanite and calcite, as shown by the X-ray diffraction results. |
| first_indexed | 2024-03-09T13:20:33Z |
| format | Article |
| id | doaj.art-89362fd8253d49878042b29063df900f |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-09T13:20:33Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-89362fd8253d49878042b29063df900f2023-11-30T21:30:58ZengMDPI AGBuildings2075-53092023-01-0113117710.3390/buildings13010177Properties Evaluation of Composite Materials Based on Gypsum Plaster and Posidonia Oceanica FibersAbdessalam Guedri0Kawthar Yahya1Noureddine Hamdi2Oscar Baeza-Urrea3Jean-Frank Wagner4Mohamed Faouzi Zagrarni5Department of Geology, Faculty of Sciences of Bizerte, Carthage University, Jarzouna, Bizerte 7021, TunisiaLaboratory of Composite Materials and Clay Minerals, National Center for Research in Materials Sciences (CNRSM), Soliman 8020, TunisiaLaboratory of Composite Materials and Clay Minerals, National Center for Research in Materials Sciences (CNRSM), Soliman 8020, TunisiaDepartment of Geology, Trier University, 54296 Trier, GermanyDepartment of Geology, Trier University, 54296 Trier, GermanyHigher Institute of Water Science and Techniques of Gabes, Gabès University, Zrig, Gabès 6072, TunisiaEstimating the amount of material without significant losses at the end of hybrid casting is a problem addressed in this study. To minimize manufacturing costs and improve the accuracy of results, a correction factor (CF) was used in the formula to estimate the volume percent of the material in order to reduce material losses during the sample manufacturing stage, allowing for greater confidence between the approved blending plan and the results obtained. In this context, three material mixing schemes of different sizes and shapes (gypsum plaster, sand (0/2), gravel (2/4), and Posidonia oceanica fibers (PO)) were created to verify the efficiency of CF and more precisely study the physico-mechanical effects on the samples. The results show that the use of a CF can reduce mixing loss to almost 0%. The optimal compressive strength of the sample (S1B) with the lowest mixing loss was 7.50 MPa. Under optimal conditions, the addition of PO improves mix volume percent correction (negligible), flexural strength (5.45%), density (18%), and porosity (3.70%) compared with S1B. On the other hand, the addition of PO thermo-chemical treatment by NaOH increases the compressive strength (3.97%) compared with PO due to the removal of impurities on the fiber surface, as shown by scanning electron microscopy. We then determined the optimal mixture ratio (PO divided by a mixture of plaster, sand, and gravel), which equals 0.0321 because Tunisian gypsum contains small amounts of bassanite and calcite, as shown by the X-ray diffraction results.https://www.mdpi.com/2075-5309/13/1/177gypsum plasterPosidonia oceanica fiberscomposite materialscorrection factor |
| spellingShingle | Abdessalam Guedri Kawthar Yahya Noureddine Hamdi Oscar Baeza-Urrea Jean-Frank Wagner Mohamed Faouzi Zagrarni Properties Evaluation of Composite Materials Based on Gypsum Plaster and Posidonia Oceanica Fibers Buildings gypsum plaster Posidonia oceanica fibers composite materials correction factor |
| title | Properties Evaluation of Composite Materials Based on Gypsum Plaster and Posidonia Oceanica Fibers |
| title_full | Properties Evaluation of Composite Materials Based on Gypsum Plaster and Posidonia Oceanica Fibers |
| title_fullStr | Properties Evaluation of Composite Materials Based on Gypsum Plaster and Posidonia Oceanica Fibers |
| title_full_unstemmed | Properties Evaluation of Composite Materials Based on Gypsum Plaster and Posidonia Oceanica Fibers |
| title_short | Properties Evaluation of Composite Materials Based on Gypsum Plaster and Posidonia Oceanica Fibers |
| title_sort | properties evaluation of composite materials based on gypsum plaster and posidonia oceanica fibers |
| topic | gypsum plaster Posidonia oceanica fibers composite materials correction factor |
| url | https://www.mdpi.com/2075-5309/13/1/177 |
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