whats heavier when set up, cement or plaster?
There is a reason they use cement for sidewalks and plaster for walls .... can you answer your own question now?
Cement-- concrete that is, a lot of bonding agents are also called cement-- is heavier, because the water stays in it when it is set. Plaster sets up with the water dried out of it.
Cement is heavier because its much more dense than plaster.
