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Performance of Waterless ConcreteThe development of permanent lunar bases is constrained by performance of construction materials and availability of in-situ resources. Concrete seems a suitable construction material for the lunar environment, but water, one of its major components, is an extremely scarce resource on the Moon. This study explores an alternative to hydraulic concrete by replacing the binding mix of concrete (cement and water) with sulfur. Sulfur is a volatile element on the lunar surface that can be extracted from lunar soils by heating. Sulfur concrete mixes were prepared to investigate the effect of extreme environmental conditions on the properties of sulfur concrete. A hypervelocity impact test was conducted, having as its target a 5-cm cubic sample of sulfur concrete. This item consisted of JSC-1 lunar regolith simulant (65%) and sulfur (35%). The sample was placed in the MSFC Impact Test Facility s Micro Light Gas Gun target chamber, and was struck by a 1-mm diameter (~1.4e-03 g) aluminum projectile at 5.85 km/s. In addition, HZTERN code, provided by NASA was used to study the effectiveness of sulfur concrete when subjected to space radiation.
Document ID
20100026417
Document Type
Conference Paper
Authors
Toutanji, Houssam (Alabama Univ. Huntsville, AL, United States)
Evans, Steve (NASA Marshall Space Flight Center Huntsville, AL, United States)
Grugel, Richard N. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 24, 2013
Publication Date
June 15, 2010
Subject Category
Composite Materials
Report/Patent Number
M10-0150
Meeting Information
Structural Faults and Repair 2010(Edinburgh, Scotland)
Distribution Limits
Public
Copyright
Public Use Permitted.

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