eli5. when concrete powder gets wet it becomes a paste but when it drys and you pour water on it it stays the same?
In: 7
As an exemple, if you wet a cloth, then dry it, then do it again you can go from wet to dry, to wet again, etc.
But if you cook an egg, you can not go back to raw again.
Cement doesn’t dry, it cures and becomes solid, very hard, and also waterproof.
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