Usually cement boats are made by trowling mortar into a mesh form.

For a quick and cheap alternative, mix your cement and soak burlap in it.
Lay the soaked buralp over a form which could be made of wood, paper mache
covered in plastic, wet sand, or whatever. Cover the whole thing with
plastic for a few days until the cement cures. Then lift your boat hull
off the form.

Cheap durable house walls have been made in Africa by draping burlap soaked in
cement over wires stretched between poles. You might find something about
it on the Internet.

) writes:
I have to build a cement boat that will hold as much weight as
possible. It must be made completely out of cement, no styrofoam, wood,
or anything that would provide buoyancy. It can be 1 cubic foot
maximum. How would I go about doing this??



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