Metakaolin-based geopolymer formation and properties: The influence of\nthe maturation period and environment (air, demineralized and sea water)

0584979 - ÚSMH 2025 RIV KR eng J - Journal Article
Perná, Ivana - Novotná, Martina - Hanzlíček, Tomáš - Šupová, Monika - Řimnáčová, Daniela
Metakaolin-based geopolymer formation and properties: The influence of
the maturation period and environment (air, demineralized and sea water).
Journal of Industrial and Engineering Chemistry. Roč. 134, JUNE (2024), s. 415-424. ISSN 1226-086X. E-ISSN 1876-794X
Grant - others:AV ČR(CZ) StrategieAV21/23
Program: StrategieAV
Institutional support: RVO:67985891
Keywords : Metakaolin-based geopolymer * Maturation period * Environment * Properties * Stability
OECD category: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
Impact factor: 6.1, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.jiec.2024.01.005

Preparation and application parameters are decisive for the use of any construction or repair material. For this reason, the effect of the maturation period and the influence of the surrounding environment (air, demineralized and sea water) on geopolymer properties has been studied. Geopolymer samples prepared with the maturation period of 2 and 28 days have been exposed to air, demineralized or sea water. The solids were then investigated
in terms of their mechanical properties, the formation of geopolymer netting, and their stability in aqueous media. The presented results have proven that shortening the maturation period has a marginal effect on the final properties of geopolymer solids. Infrared spectroscopy has revealed that neither the length of the maturation period nor the ambient environment investigated has an effect on the formation of geopolymer bonds. No undesirable crystalline phases have been formed, which also concerns sea water. The submersion in aqueous media as early as 2 days after preparation, even in sea water, has no significant adverse effects on geopolymer bond formation or properties. These findings can facilitate the potential public acceptance and wider application of geopolymers in practice.
Permanent Link: https://hdl.handle.net/11104/0353666