Utilization of urea as an accessible superplasticizer on the moon for lunar geopolymer mixtures - ScienceDirect https://www.sciencedirect.com/science/article/pii/S0959652619340478
Study: Future astronauts could use their own urine to help build moon bases | Ars Technica https://arstechnica.com/science/2020/03/study-future-astronauts-could-use-their-own-urine-to-help-build-moon-bases/
Astronaut Pee Could Be a Great Building Material For Future Moon Bases https://www.sciencealert.com/future-moon-bases-could-be-made-out-of-astronaut-wee https://i.gzn.jp/img/2020/04/01/astronauts-urine-use-moon-bases/img-snap03452_m.png