Investigating the Effect of Different Parameters on Physical Properties of Metakaolin-Based Geopolymers
Recently, geopolymers have received widespread attention due to their ability to completely replace ordinary cement with better efficiency, lower cost, and less damage to the climatic environment. This paper aimed to prepare MK-based geopolymer cement at ambient temperature with different alkaline a...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2022-12-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_175636_0b307cb3e68701a2c363d1211d30d6d9.pdf |
| _version_ | 1797337702354386944 |
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| author | Ahmed Abed AL-Jabar Hanna Al-Kaisy Sarmad Ibrahim |
| author_facet | Ahmed Abed AL-Jabar Hanna Al-Kaisy Sarmad Ibrahim |
| author_sort | Ahmed Abed AL-Jabar |
| collection | DOAJ |
| description | Recently, geopolymers have received widespread attention due to their ability to completely replace ordinary cement with better efficiency, lower cost, and less damage to the climatic environment. This paper aimed to prepare MK-based geopolymer cement at ambient temperature with different alkaline activators and processing parameters. XRD, PSA, DTA-TGA, SEM, and other techniques have characterized the prepared samples. ANOVA test was employed to identify the main effect of the processing parameters. Results showed that the incorporation of potassium ions has a negative effect on the physical properties of GP, in which the presence of such ions tends to decrease the density of GP. Furthermore, the apparent porosity and water absorption were increased. For Na and K, Na-activated GP, it was also concluded that the density of GP increases by increasing Si/Al ratios. Despite the Na-based GP processes having a larger density in compared to the K, Na-based ones. The results also suggested a strong effect of the W\MK ratio on physical properties, in which decreasing this ratio is necessary to achieve GP with better properties. The findings also revealed that a one-minute mixing period was sufficient for producing a homogeneous and dense GP paste. |
| first_indexed | 2024-03-08T09:16:27Z |
| format | Article |
| id | doaj.art-b3379381c0fd4003a47623f9d13420de |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T09:16:27Z |
| publishDate | 2022-12-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-b3379381c0fd4003a47623f9d13420de2024-01-31T14:28:01ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582022-12-0140121702171110.30684/etj.2022.132691.1138175636Investigating the Effect of Different Parameters on Physical Properties of Metakaolin-Based GeopolymersAhmed Abed AL-Jabar0Hanna Al-Kaisy1Sarmad Ibrahim2materials engineering, university of technology, Baghdad, Iraqmaterial engineering, university of technologyMaterials engineering, university of technologyRecently, geopolymers have received widespread attention due to their ability to completely replace ordinary cement with better efficiency, lower cost, and less damage to the climatic environment. This paper aimed to prepare MK-based geopolymer cement at ambient temperature with different alkaline activators and processing parameters. XRD, PSA, DTA-TGA, SEM, and other techniques have characterized the prepared samples. ANOVA test was employed to identify the main effect of the processing parameters. Results showed that the incorporation of potassium ions has a negative effect on the physical properties of GP, in which the presence of such ions tends to decrease the density of GP. Furthermore, the apparent porosity and water absorption were increased. For Na and K, Na-activated GP, it was also concluded that the density of GP increases by increasing Si/Al ratios. Despite the Na-based GP processes having a larger density in compared to the K, Na-based ones. The results also suggested a strong effect of the W\MK ratio on physical properties, in which decreasing this ratio is necessary to achieve GP with better properties. The findings also revealed that a one-minute mixing period was sufficient for producing a homogeneous and dense GP paste.https://etj.uotechnology.edu.iq/article_175636_0b307cb3e68701a2c363d1211d30d6d9.pdfgeopolymersodiumpotassiumphysical propertiesanova |
| spellingShingle | Ahmed Abed AL-Jabar Hanna Al-Kaisy Sarmad Ibrahim Investigating the Effect of Different Parameters on Physical Properties of Metakaolin-Based Geopolymers Engineering and Technology Journal geopolymer sodium potassium physical properties anova |
| title | Investigating the Effect of Different Parameters on Physical Properties of Metakaolin-Based Geopolymers |
| title_full | Investigating the Effect of Different Parameters on Physical Properties of Metakaolin-Based Geopolymers |
| title_fullStr | Investigating the Effect of Different Parameters on Physical Properties of Metakaolin-Based Geopolymers |
| title_full_unstemmed | Investigating the Effect of Different Parameters on Physical Properties of Metakaolin-Based Geopolymers |
| title_short | Investigating the Effect of Different Parameters on Physical Properties of Metakaolin-Based Geopolymers |
| title_sort | investigating the effect of different parameters on physical properties of metakaolin based geopolymers |
| topic | geopolymer sodium potassium physical properties anova |
| url | https://etj.uotechnology.edu.iq/article_175636_0b307cb3e68701a2c363d1211d30d6d9.pdf |
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