Evaluation of Sulfur “Concrete” for Use as a Construction Material on the Lunar Surface
- Paper number
IAC-08.A3.2.INT2
- Author
Dr. Richard Grugel, National Aeronautics and Space Administration (NASA)/Marshall Space Flight Center, United States
- Year
2008
- Abstract
Combining molten sulfur with any number of aggregate materials forms, when solid, a mixture having attributes similar, if not better, to conventional water-based concrete. As a result the use of sulfur “concrete” on Earth is well established, particularly in corrosive environments. Consequently, discovery of troilite (FeS) on the lunar surface prompted numerous scenarios about its reduction to elemental sulfur for use, in combination with lunar regolith, as a potential construction material; not requiring water, a precious resource, for its manufacture is an obvious advantage. However, little is known about the viability of sulfur concrete in an environment typified by extreme temperatures and essentially no atmosphere. The experimental work presented here evaluates the response of pure sulfur and sulfur concrete subjected to laboratory conditions that approach those expected on the lunar surface, the results suggesting a narrow window of application.
- Abstract document
- Manuscript document
(absent)