Concrete is very versatile, inexpensive, literally hard, and can be cast into almost any shape. It consists, in principle, only of sand, gravel, water, and the binder cement. The latter is made by the ...
Modern Engineering Marvels on MSN
Surprising Carbon-Negative Material Outperforms Concrete in Strength Tests
In the Arizona desert, a lab accident more than a decade ago set in motion the development of a building material that could ...
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