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http://cimav.repositorioinstitucional.mx/jspui/handle/1004/842| Synthesis and structural and mechanical analysis of geopolymeric materials | |
| OLGA IDALU PEREZ ORDOÑEZ | |
| JOSE MARTIN HERRERA RAMIREZ LUIS EDMUNDO FUENTES COBAS | |
| Acceso Abierto | |
| Sin Derechos Reservados | |
| Geopolimeros | |
| Geopolymers could be a promising application of the cement industry as an alternative binder of the Portland cement, which is responsible of 8-10 wt% of the anthropogenic emissions of CO2. Geopolymers could help to reduce the emissions that contribute to the greenhouse effect and improve mechanical and structural properties that actually an ordinary Portland cement has. In this research work, it was studied the raw materials by structural and microstructural analysis including, but not limited to, thermal analysis, scanning electron microscopy, particle size distribution, X-ray diffraction, X-ray fluorescence, surface area by the method BET and Fourier transform infrared spectroscopy. Subsequently the geopolymeric and ordinary materials were synthesized through ten different formulations; these materials were prepared in the form of pastes and mortars according to the ASTM C109/C109M-11 standard, which indicates that the material must be set in a 5 cm-side cubic mold. Once the materials were set, they were cured in a humid environment to complete the reaction that is carried out during curing; this procedure was performed according to the aforementioned standard. After 7, 14 and 28 days of curing, the pastes and mortars were tested by compression tests based on the ASTM E9 standard. The geopolymers were structurally studied by X-ray diffraction, and the geopolymeric pastes were analyzed by the Rietveld method. The results of this investigation showed that the compressive strength of the geopolymers increases with increasing the amount of the alite phase because it acts as a nucleating agent to promote the geopolymerization reaction. The geopolymers matched the compressive strength of ordinary material, which is extremely favorable since it has been shown that the production of the geopolymer generates a lower amount of greenhouse gases. | |
| 2017-08 | |
| Tesis de maestría | |
| Inglés | |
| OTRAS | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Doctorado en Ciencia de Materiales |
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| Olga Idalú Pérez Ordóñez MCM.pdf | 2.55 MB | Adobe PDF | Visualizar/Abrir |