Inorganic–Organic Hybrid of Lunar Soil Simulant and Polyethylene
Publication: Journal of Materials in Civil Engineering
Volume 28, Issue 4
Abstract
Inorganic–organic hybrid (IOH) lunar cements are processed by using a lunar soil simulant and polyethylene (PE). As the inorganic simulant grains are strongly held together by the PE binder, the IOH may be utilized as an infrastructural material on the lunar surface. With a uniform simulant grain size, the flexural strength of the IOH decreases exponentially with the binder content, quite close to the strength of samples of random simulant grain-size distribution. If the simulant grains have a two-step size gradation, the IOH strength increases significantly. Above a threshold binder content, the strength decreases only slightly as more simulant grains are added; below the threshold, the IOH becomes much weaker as less binder is used.
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Acknowledgments
This work is supported by the National Aeronautics and Space Administration (NASA) under Grant No. NNX12AI73G, for which we are grateful to Dr. Robert A. Fogel.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 28 • Issue 4 • April 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Dec 11, 2014
Accepted: Aug 11, 2015
Published online: Oct 14, 2015
Discussion open until: Mar 14, 2016
Published in print: Apr 1, 2016
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