Is it possible to make Asteroid Concrete?

In the far future, man is trying to build a small colony in the asteroid belt - on one of the bigger asteroids. All the materials are to be mined from asteroids, and it is assumed the colony will have access to mine any and all types of asteroids as needed. The question is, can we make concrete solely out of minerals obtained from asteroids?

Concrete is aggregate, water, and dry cement.

Aggregate I presume can be broken down from any suitable asteroid. Some asteroids do have water in them, so water shouldn't be a problem either It's the cement part I'm having difficulty with. Some asteroids contain very tiny traces of Calcium in them, but would this be enough to make cement from?

posted over 5 years ago

Haedrian‭

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