Activities conducted in this study can be divided into two general sections: synthesis and analysis and identifies the properties. A geopolymeric cement production process includes two steps of thermal activation and alkaline activation. Geopolymers are cementitious materials synthesized by a polycondensation reaction between an aluminate and silicate. The geopolymeric structures of the products were investigated by Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). XRD results showed that there are no significant differences between the XRD patterns of geopolymers and metakaolin. The structure of the geopolymer is typically an amorphous phase lacking periodically repeated atomic ordering. By studying the FTIR spectra after alkali activation, shifting the main band by changing the wave number causes a new product formation and changes in the environmental chemical bonding and also results in microstructural changes towards metakaolin. SEM results showed that the integrated phase is obtained as a result of a geopolymerization process. An increase in the curing time changes the morphology and a more integrated phase is obtained, thus the strength increases.

Keywords: Geopolymer, Metakaolinite, Compressive strength, Microstructure