What is hydraulic cement? What makes it different from regular cement? Saw it mentioned in an article in JLC and realized I don’t know.
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Replies
That's cement that can be applied/cured under water. Tremie concrete, some shotcrete mixes and wet-application patch materials (usually heavily modified with epoxy and other admixtures) are examples.
...that's not a mistake, it's rustic
If you are referring to what I have used called hydraulic cement. It expands during curing. I've used it several times to plug cracks in basement walls.
chisel out the loose cement so that it is slightly larger behind the crack than in front and press the hyd cement in hold pressure on it for a few minutes and presto no more leak!
You can buy it at HD or most mason suppliers. As someone else said, it expands as it cures- good for setting wrought iron railings in concrete- just core a hole, set the rail in, and pour. The expansion locks the rail in.
Bob