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Lunar Regolith Simulant Cug-1
| Content Provider | Semantic Scholar |
|---|---|
| Author | He, Xiao Xi Xiao, Lin-Da Huang, J-C. Wan, Chang Ho Wu, Ting-Chi Gao, Rongbao He, Qingyou |
| Copyright Year | 2009 |
| Abstract | Introduction: Lunar regolith simulant is very significant for lunar science and engineering researches. Due to lack of real lunar regolith, in order to satisfy large requirements, several lunar regolith simulants, such as JSC-1, MLS-1, FJS-1, MKS-1 were produceed for different research purposes and most of them have been used up. A new simulant, CUG-1A, has been produceed under the sponsors of China University of Geosciences (Wuhan). The CUG-1A is developed specifically for engineering studies on Lunar surface in support of future human activities on the Moon. We studied partical size distrbution, specific gravity, angle of internal friction and cohesion, as well as the geochemistry properties of the CUG-1A lunar regolith simulant. Starting materials: The starting material is basaltic volcanic scoria collected from Huinan County, northeast China. The scoria is usually black and brownish with several meters thick, and forms a huge pyroclastic sheet over large areas. Previous studies pointed out that this low-Ti basaltic scoria was formed 1600 years ago [1][2]. Methods: The basaltic scoria was air-dried for several weeks before analysis, and then crushed in an impact mill. Milled fine particles were grounded to pass the 20 mesh, 40 mesh, 150 mesh, 250 mesh sieve subsequently. They are assembled with a certain percentage to make the particle size distribution approach to the Apollo lunar soils. Finally, the mixture was packed and placed into storage. Results: Several hundred kilograms of lunar regolith simulant CUG-1A has been produced. Their physical and chemistry properties are generally similar to Apollo 14 soil. The major crystalline mineral phases of CUG-1A are plagioclase (9% wt) , pyroxene (20% wt) and olivine (48% wt) , and glass (23% wt%). The main elements were analyzed by XRF. They are similar to Apollo 14 soil [3], except the contents of Na2O and K2O (Table 1). The results of physical and engineering properties of the CUG-1A are listed in Table 2. The partical size distrbution is between 10μm and 750μm. The median partical size and mean partical size are 80μm and 92μm respectively. It’s average specific gravity is 2.88g/ cm3. The angle of internal friction is approximately 20, and the cohesion value is 5-21Kpa. These results of CUG-1A are also similar to Apollo 14 samlpe. Table 1:Major Elements Compositions of CUG-1A and comparison with Apollo soils [3]. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.lpi.usra.edu/meetings/lpsc2010/pdf/1183.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
