Summary

This paper investigates the impact of thermal activation on lunar regolith simulant-based precursor and resulting geopolymer, focusing on composition, structure, solubility, and reactivity. Thermal activation enhances precursor reactivity by increasing non-bridging oxygen content, reducing polymerization, and altering binding energies of Si, Al, and O. Solubility of Si and Al in NaOH solution is improved, and geopolymers exhibit higher compressive strength, reaction degree, and denser microstructure. The paper investigates the impact of thermal-activated processes on the properties of geopolymers synthesized from lunar regolith simulant. It covers mineralogical composition, chemical structure analysis, solubility of alkali leaching, and the effects on compressive strength and chemical bonding. The study also includes contributions from various authors and acknowledges financial support from the National Natural Science Foundation of China..jpg gr1 gr1.jpg jpg 271003 695 811 IMAGE-DOWNSAMPLED https://s3-eu-west-1.amazonaws.com/prod-ucs-content-store-eu-west/content/pii:S095894652400413X/gr3/DOWNSAMPLED/image/jpeg/dd9903e4603dce28a9f9ac0b09db0847/gr3.jpg gr3 gr3.jpg jpg 349423 894 6

Methods and applications