The effect of temperature on the geopolymerization process of a metakaolin-based geopolymer |
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Authors: | M.S. Muñ iz-Villarreal,A. Manzano-Ramí rezS. Sampieri-Bulbarela,J. Ramó n Gasca-TiradoJ.L. Reyes-Araiza,J.C. Rubio-Á valosJ.J. Pé rez-Bueno,L.M. ApatigaA. Zaldivar-Cadena,V. Amigó -Borrá s |
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Affiliation: | a Centro de Investigaciones y de Estudios Avanzados del I.P.N. Unidad Querétaro, Querétaro, Querétaro, C.P. 76230, Mexicob Centro de Investigación y Desarrollo Tecnológico Electroquímica, Querétaro, Mexicoc Centro de Física Aplicada y Tecnología Avanzada, UNAM, A.P.1-1010, Querétaro, Mexicod Instituto ingeniería civil, UANL, Nuevo León, Mexicoe Instituto Tecnología de Materiales, UPV, Valencia, Spain |
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Abstract: | This paper describes the effect of different curing temperatures on the geopolymerization process, physical, mechanical and optical properties of a metakaolin-based geopolymer activated by alkali. The influence of different curing temperatures (within the range 30 to 90 °C) was studied systematically by means of differential scanning calorimetry (DSC), SEM, UV/Vis Spectrophotometry, Leaching analysis and Brunauer-Emmet-Teller method (BET). The results showed the existence of an optimum temperature at which the geopolymer presents the best physical and mechanical properties. The geopolymers cured at 30 and 90 °C presented high porosity, and were translucent to the Visible light, which makes possible to tailor this inorganic polymers for optical and photocatalytic applications. |
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Keywords: | Geopolymerization Metakaolin Compressive strength |
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