Eleanora Eden on mon 24 sep 07
My volume plaster method....that ALWAYS WORKS FINE....calls for
using the same volume of plaster as the volume of space to be filled and
then using 2/3 of that in volume for the water.
But more to the point here, I do not believe that you have to pour this slab
all at once. For one thing, when I have a big pour to do I do a small pour
first to make sure there are no leaks at the bottom without the pressure
of a large amount of plaster forcing it out those leaks. Then with my finger
or a tool I make a whole lot of undercuts in the plaster surface after it has
gotten a little past pudding stage and before it sets fully.....think of going
in at a diagonal...... so that the subsequent batch is locked in place.
This is a no-stress plaster procedure that works great for me.
Eleanora
>Hi Clay People,
>
>Can someone please tell me how to calculate the quantity of plaster needed
>to fill a 33" x33" x2"
>space i.e. how many pounds of plaster do I need to fill this space? I know
>how to weigh and measure the proportions of water
>to plaster but no where can I find the way to calculate the quantity of
>plaster required. It's not a catastrophe if I end up with
> too much but to be short would not be desirable.
--
Bellows Falls Vermont
www.eleanoraeden.com
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