National food aleart, dont eat.....ecoli

[crabby1]

G'day again, They are still using gypsum here as filler in the Gyprock sheets and after the building reaches a certain they run a bobcat over the site and the refuse goes off to the waste management plant where it is sorted. The scrap timber goes through a wood chipper and becomes garden mulch. Bricks and roof tile offcuts are crushed and become road base fill. Gyprock is crushed the paper liner goes off to become cardboard and the gypsum filler is finely crushed and bagged as gypsum for adding to clay based gardens. Very little goes into land fill the space is far too valuable. Most of the brick houses in Sydney were manufactured from clay dug out of the state owned brick pit at St. Peters which back in the fifties was a incredibly large hole in the ground. A wag once told me they were going to cut up the brick pit and sell it as post holes.
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