The effect of temperature on the geopolymerization process of a metakaolin-based geopolymer
By M. S. Muñiz-Villarreal, A. Manzano-Ramírez, S. Sampieri-Bulbarela, J. R. Gasca-Tirado, J. L. Reyes-Araiza, J. Rubio-Avalos, J. Pérez-Bueno, L. M. Apátiga, A. Zaldívar-Cadena, V. Amigó-Borrás. 2011
257 citations recorded by the source corpus.
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.
Subfields: Civil and Structural Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/25179208e4f490cf2d3b44a6cc06a7b685df157f
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Citations in the corpus
- Production of eco-friendly bricks from copper mine tailings through geopolymerization (2012, background): “However, when the temperature is above a certain level, the fast polycondensation and rapid formation of geopolymeric gel will hinder further dissolution of silica and alumina species and thus affect the strength adversely [32,33].”
- Effects of activator type/concentration and curing temperature on alkali-activated binder based on copper mine tailings (2012, background): “The weakened strength of geopolymer above the optimum temperature is mainly due to the fast polycondensation and rapid formation of geopolymeric gel which hinders further dissolution of silica and alumina species [57, 59].”
- Evolution of alkaline activated ground blast furnace slag–ultrafine palm oil fuel ash based concrete (2014, result): “[32] had also reported lesser pore distribution in the metakaolin based geopolymer activated at 60 C as compared with 30 and 90 C thermal activation.”