@Article{jrm.2022.018771,
AUTHOR = {Wu Jing, Ren Luo, Sha Ding, Ping Duan},
TITLE = {Influences of Multi-Component Supplementary Cementitious Materials on the Performance of Metakaolin Based Geopolymer},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {10},
YEAR = {2022},
NUMBER = {7},
PAGES = {1813--1828},
URL = {http://www.techscience.com/jrm/v10n7/46955},
ISSN = {2164-6341},
ABSTRACT = {In this study, the workability and reaction mechanism of metakaolin (MK) based geopolymer blended with rice
husk ash (RHA) and silica fume (SF) was investigated. The prepared samples were subjected to tests including
compressive strength and fluidity tests. X-ray diffraction (XRD) and Scanning electron microscope (SEM) were
employed to explore the phase composition and microstructure of geopolymers. The molecular bonding information of geopolymer was provided by Fourier transform infrared spectroscopy (FTIR). Meanwhile, the porosity of
geopolymer was obtained by Mercury intrusion porosimeter (MIP) analysis. The high-activity RHA obtained after
calcination at 600°C was used as a supplementary cementitious material to prepare geopolymer. The properties of
preventing morphology cracking and compressive strength are improved. The addition of RHA and SF changes
the working performance of MK based geopolymer and provided a theoretical basis for future practical
applications. Meanwhile, the high chemical activity of SF and RHA contributes to the healing of microcracks.},
DOI = {10.32604/jrm.2022.018771}
}