In about a years time the county next to me will have mountains of Gypsum for
me to play with....seems the Gypsum will be a fine powder and by product of
Lignite mining; mixed with our red clay it makes a fine soil cement; however
it does have sulphur which makes it unstable for anything else..or does
it?.......based on the discussions on this list involving plaster which I
missed for the birth of our daughter; could I pour low cost walls for the
garden lets say using acetic acid and this unstable Gypsum (sulphur % said to
be low) then waterproof the walls...or is this a waste of time.....and go
back to the cement....got to go its the 4 oclock feed...Michael