Influences of Multi-Component Supplementary Cementitious Materials on the Performance of Metakaolin Based Geopolymer

In this study, the workability and reaction mechanism of metakaolin (MK) based geopolymer blended with rice husk ash (RHA) silica fume (SF) was investigated. The prepared samples were subjected to tests including compressive strength fluidity tests. X-ray diffraction (XRD) Scanning electron microscope (SEM) employed explore phase composition microstructure geopolymers. molecular bonding information provided by Fourier transform infrared spectroscopy (FTIR). Meanwhile, porosity obtained Mercury intrusion porosimeter (MIP) analysis. high-activity RHA after calcination at 600°C used as a supplementary cementitious material prepare geopolymer. properties preventing morphology cracking are improved. addition SF changes working performance MK theoretical basis for future practical applications. high chemical activity contributes healing microcracks.