Sulfur concrete is a composite construction material, composed of sulfur, aggregate (generally a coarse aggregate made of gravel or crushed rocks and a fine aggregate such as sand). Cement (commonly Portland cement) and water, important compounds in normal concrete, are not part of sulfur concrete. The concrete is heated above the melting point of sulfur ca. 140°C. After cooling the concrete reaches a high strength, not needing a prolonged curing like normal concrete. Sulfur concrete is resistant to some compounds like acids which attack normal concrete. Sulfur concrete was developed and promoted as building material to get rid of large amounts of stored sulfur produced by hydrodesulfurization of gas and oil. Sulfur concrete is also a possible building material for a lunar base. Up to 2011, sulfur concrete is only used in small quantities when fast curing or acid resistance is necessary.
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- Houssam Toutanji, Becca Glenn-Loper, and Beth Schrayshuen (2005). "Strength and Durability Performance of Waterless Lunar Concrete" (PDF). 43rd AIAA Aerospace Sciences Meeting and Exhibit 10 – 13 January 2005, Reno, Nevada. American Institute of Aeronautics and Astronautics.
- R.N. Grugel, and Houssam Toutanji (2006). "Viability of Sulfur "Concrete" on the Moon: Environmental Consideration". Proceedings: 43rd American Institute of Aeronautics and Astronautics (AIAA), Reno, NV, Jan. 9-12, 2006. — also:
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