T. M. Egnaczyk, W. H. H. V, N. J. Wagner | 2024 | Advances in Space Research
DOI 10.1016/j.asr.2023.11.030Review state
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This paper investigates the composition-property relationships of BP-1 lunar regolith simulant geopolymers for in-situ resource utilization (ISRU). It examines how geopolymer composition, activating solution silica and sodium content, and water content affect seven-day compressive strength, strain to fail, and secant modulus. The study highlights the importance of understanding composition-structure relationships for optimizing lunar construction materials. This paper investigates the composition-property relationships of BP-1 lunar regolith simulant geopolymers for in-situ resource utilization (ISRU). It evaluates compressive strength (CS) under various environmental conditions and discusses the impact of chemical composition and processing on geopolymer properties. The study references prior work on JSC-1A, LHS-1, and MGS-1C simulants, highlighting the need for standardized protocols in geopolymer characterization. The paper discusses composition-property relationships of BP-1 lunar regolith simulant geopolymers for in-situ resource utilization (ISRU) on the Moon and Mars. It outlines factors affecting geopolymer material properties, including aluminosilicate source, activating s
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Water content variation study
compositional
Compressive strength measurement
material property testing
Particle size distribution analysis by laser diffraction of sieved BP-1 lunar regolith simulant
characterization
Sodium silicate activating solutions preparation
preparation
Geopolymer synthesis
synthesis
pH measurement
analysis
geopolymer formulation
material design
geopolymer activation solutions
material characterization
Compressive strength
75 wt% BP-1
Water content
varied
Compressive strength (CS)
sufficient for potential use as a vertical takeoff/vertical landing (VTVL) pad
geopolymer formation
pseudo-ternary state diagram
chemical composition
Table 3 Molar ratio analysis of Black Point 1 lunar regolith simulant (M OX = Moles of oxide in each row).
activation solutions
BP-1 geopolymers formed from the following activating solutions: 0.3Si/ (green squares), 0.4Si/ (orange circles), 0.5Si/ (purple triangles), 0.6Si/ (pink diamonds).
compressive strength
not specified
Inherent water content
3.68 0.01 wt%