Summary

This review paper discusses regolith-based alkali activated materials and sintered regolith for lunar construction. It highlights the need for standardized simulants and curing methods to predict lunar mission conditions. The paper covers manufacturing methods, mix designs, and mechanical performance of regolith-based materials. This paper explores the use of alkali-activated materials (AAMs) for construction applications, focusing on their potential to reduce carbon emissions compared to traditional cement. The study evaluates the mechanical properties, durability, and environmental impact of AAMs, highlighting their viability as sustainable alternatives in the construction industry. The provided text discusses the development and application of geopolymers for extrusion-based additive manufacturing, particularly in the context of space exploration and planetary construction. It outlines various studies and experiments conducted by different researchers, focusing on the use of simulants like JSC-1A, JSC-2A, LMS-1, LHS-1, BP-1, and DNA-1. The key findings include the impact of the Si/Al ratio on compressive strength, the role of water content and curing conditions, and the effects

Methods and applications