Inicio  /  Coatings  /  Vol: 7 Núm: 12 Par: Decembe (2017)  /  Artículo
ARTÍCULO
TITULO

Metakaolin-Based Geopolymer with Added TiO2 Particles: Physicomechanical Characteristics

Luis A. Guzmán-Aponte    
RuMejía de Gutiérrez and Anibal Maury-Ramírez    

Resumen

The effect of the TiO2 addition on the physicomechanical properties of a geopolymer system based on metakaolin (MK) and hydroxide and potassium silicate as activators is presented in this article. Three different liquid-solid systems (0.35, 0.40, and 0.45) and two titanium additions were investigated (5% and 10% of the cement content). The flowability, setting time, and mechanical strength of the geopolymer mixtures and their microstructural characteristics were evaluated using techniques such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). It was concluded that a percentage of up to 10% TiO2 does not affect the mechanical properties of the geopolymer, although it does reduce the fluidity and setting times of the mixture.

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