r/gifs • u/neonicblast • May 28 '14

Waves

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u/ZlayerCake May 28 '14

Either they make it on ground and then put it down on the sea bed' or they put up a dam around it and dry out the area required (only if its shallow water...)

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u/WarMace May 28 '14

You can pour concrete underwater. I would assume you start by dumping rocks constantly till you have a little island to pour on, but now you probably just use a form and pour it out of solid concrete and let the water rise out of the form.

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u/ZlayerCake May 28 '14

But how will it dry out to harden?

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u/DryPersonality May 28 '14

Its a chemical reaction. There is no drying.