Chemical and Mechanical Properties of Metakaolin-Based Geopolymers with Waste Corundum Powder Resulting from Erosion Testing
Alkali activated binders, based on an aluminosilicate powder that is activated by an alkaline solution, have been proven to encapsulate a wide number of different wastes, both in the form of liquids and solids. In this study, we investigated the effect that the addition of a spent abrasive powder, m...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/23/5091 |
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| author | Giovanni Dal Poggetto Pakamon Kittisayarm Suphahud Pintasiri Pongpak Chiyasak Cristina Leonelli Duangrudee Chaysuwan |
| author_facet | Giovanni Dal Poggetto Pakamon Kittisayarm Suphahud Pintasiri Pongpak Chiyasak Cristina Leonelli Duangrudee Chaysuwan |
| author_sort | Giovanni Dal Poggetto |
| collection | DOAJ |
| description | Alkali activated binders, based on an aluminosilicate powder that is activated by an alkaline solution, have been proven to encapsulate a wide number of different wastes, both in the form of liquids and solids. In this study, we investigated the effect that the addition of a spent abrasive powder, mainly composed of corundum grains (RC), had on the mechanical, physical, and chemical properties of metakaolin-based geopolymers. The waste was introduced into the geopolymer matrix as a substitute for metakaolin, or added as a filler to the geopolymeric paste. The 3D cross-linking of the geopolymer structure, with and without the presence of the corundum, was investigated via Fourier transform infrared spectroscopy, X-ray diffraction, and ionic conductivity measurements of the eluate that was produced after 24 h of immersion of the sample in water. The RC powder did not significantly modify the matrix reticulation but increased densification, as observed with scanning electron microscopy, and there was increased resistance to compression by 10 wt% addition of RC, and also when added to the paste as a filler at 20 wt%. |
| first_indexed | 2024-03-09T17:34:26Z |
| format | Article |
| id | doaj.art-0229f182198c4afdbf9adca9d444c682 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T17:34:26Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-0229f182198c4afdbf9adca9d444c6822023-11-24T11:58:10ZengMDPI AGPolymers2073-43602022-11-011423509110.3390/polym14235091Chemical and Mechanical Properties of Metakaolin-Based Geopolymers with Waste Corundum Powder Resulting from Erosion TestingGiovanni Dal Poggetto0Pakamon Kittisayarm1Suphahud Pintasiri2Pongpak Chiyasak3Cristina Leonelli4Duangrudee Chaysuwan5Department of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, ItalyDepartment of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, ThailandDepartment of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, ThailandDepartment of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, ThailandDepartment of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, ItalyDepartment of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, ThailandAlkali activated binders, based on an aluminosilicate powder that is activated by an alkaline solution, have been proven to encapsulate a wide number of different wastes, both in the form of liquids and solids. In this study, we investigated the effect that the addition of a spent abrasive powder, mainly composed of corundum grains (RC), had on the mechanical, physical, and chemical properties of metakaolin-based geopolymers. The waste was introduced into the geopolymer matrix as a substitute for metakaolin, or added as a filler to the geopolymeric paste. The 3D cross-linking of the geopolymer structure, with and without the presence of the corundum, was investigated via Fourier transform infrared spectroscopy, X-ray diffraction, and ionic conductivity measurements of the eluate that was produced after 24 h of immersion of the sample in water. The RC powder did not significantly modify the matrix reticulation but increased densification, as observed with scanning electron microscopy, and there was increased resistance to compression by 10 wt% addition of RC, and also when added to the paste as a filler at 20 wt%.https://www.mdpi.com/2073-4360/14/23/5091geopolymerrecycled corundumalkali activationmetakaolinmechanical performancesemireactive filler |
| spellingShingle | Giovanni Dal Poggetto Pakamon Kittisayarm Suphahud Pintasiri Pongpak Chiyasak Cristina Leonelli Duangrudee Chaysuwan Chemical and Mechanical Properties of Metakaolin-Based Geopolymers with Waste Corundum Powder Resulting from Erosion Testing Polymers geopolymer recycled corundum alkali activation metakaolin mechanical performance semireactive filler |
| title | Chemical and Mechanical Properties of Metakaolin-Based Geopolymers with Waste Corundum Powder Resulting from Erosion Testing |
| title_full | Chemical and Mechanical Properties of Metakaolin-Based Geopolymers with Waste Corundum Powder Resulting from Erosion Testing |
| title_fullStr | Chemical and Mechanical Properties of Metakaolin-Based Geopolymers with Waste Corundum Powder Resulting from Erosion Testing |
| title_full_unstemmed | Chemical and Mechanical Properties of Metakaolin-Based Geopolymers with Waste Corundum Powder Resulting from Erosion Testing |
| title_short | Chemical and Mechanical Properties of Metakaolin-Based Geopolymers with Waste Corundum Powder Resulting from Erosion Testing |
| title_sort | chemical and mechanical properties of metakaolin based geopolymers with waste corundum powder resulting from erosion testing |
| topic | geopolymer recycled corundum alkali activation metakaolin mechanical performance semireactive filler |
| url | https://www.mdpi.com/2073-4360/14/23/5091 |
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