Countries (including the US) are vying to set up colonies on the moon. But once they get there, they’re going to have to build shelters.

Researcher Houssam Toutanji has developed the concept of creating concrete structures on the lunar surface without the use of water. Traditional concrete consists of cement and water mixed with aggregates. While some parts of the Moon may have water, that resource may be more valuable for astronaut?s consumption rather than building structures. But his research shows that those astronauts can turn to a new type of waterless concrete that uses lunar soil as the aggregate and sulfur as a binding agent.

Toutanji thinks that NASA will adopt his concrete to construct facilities on the lunar surface, so settlers there can survive the harsh environment on the Moon?s surface. He says, “The difficulty of transporting materials from Earth will place a premium on resourcefulness and ingenuity.”

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