Extruded Clay-Based Regoliths For Construction On Mars, Phobos, And Neas

Abstract

DSI, in partnership with UCF, explored the feasibility of using clay regoliths as construction materials in Mars, Phobos, and near-Earth asteroids. This paper presents the results of that work. Clays are a known component of Martian regoliths as well as of many NEAs, likely to include Phobos and Deimos. We explored the production of clay-based building materials, using asteroid and martian simulants, both as-prepared, and after various beneficiation processes. Construction approaches evaluated included additive manufacturing (3-D printing) and traditional bricklaying (using mortars) as well as interlocking bricks (3-D assembly). We modeled 3-D printing approaches using simple extrusion techniques, and bricks using molds. We encountered multiple problems, largely related to the necessity of recovering process water, and the significant expansion and shrinkage of many clay materials.

Publication Date

1-1-2018

Publication Title

Earth and Space 2018: Engineering for Extreme Environments - Proceedings of the 16th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments

Number of Pages

570-579

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1061/9780784481899.054

Socpus ID

85091465822 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85091465822

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