›› 2011, Vol. 32 ›› Issue (7): 1921-1925.

• Fundamental Theroy and Experimental Research •     Next Articles

Effects of moisture content and gradation on mechanical properties of TJ-1 lunar soil simulant

JIANG Ming-jing1, 2，LI Li-qing1, 2，LIU Fang1, 2，SUN Yu-gang1, 2   

  1. 1. Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China; 2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
  • Received:2009-11-16 Online:2011-07-10 Published:2011-06-30

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Abstract: Tongji-1 (TJ-1) lunar soil simulant has been developed as a substitutive material of lunar mare for the purpose of engineering and scientific research. The moisture content and gradation are significant factors influencing the mechanical properties of TJ-1 lunar soil simulant. Their variation is hardly avoided if TJ-1 lunar simulant is manufactured in large quantities. This paper investigates the effects of moisture content and gradation on the mechanical properties (e.g. strength parameters, deformability) in TJ-1 lunar simulant. A series of mechanical tests were designed and performed for TJ-1 lunar soil simulant at different moisture contents and different gradations. The experimental results demonstrate: the upper limit of the moisture content is 3%; the relationship between strength parameters and moisture content and the acceptable range of gradation are obtained.

Key words: Chinese lunar exploration program, TJ-1 lunar soil simulant, moisture content, gradation, mechanical properties

CLC Number: 

  • TU 411
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