Preparation of geopolymer for in-situ pavement construction on the moon utilizing minimal additives and human urine in lunar regolith simulant

• DOI: 10.3389/fmats.2024.1413432
• Publication Date: 2024-05-17T04:35:19Z
• Authors: Lichong Chen; Tao Wang; Feng Li; Siqi Zhou
• Keywords: Regolith; Lunar soil

Constructing lunar pavements is of great significance for improving the transportation efficiency materials and personnel transfer at bases. Utilizing regolith in-situ preparation geopolymer an effective means supplying raw pavement construction. This present study prepared geopolymers material with simulant. The influence NaOH on compressive strength was understood by using different percentages as alkaline activator. effect urine artificial pH values liquid phases. results indicated that addition slightly reduces geopolymers, effects percentage are different. Microstructural analysis performed Mercury Intrusion Porosimetry Scanning Electron Microscope, choosing fine-particle simulant precursor more conducive to high-strength human urine.