How can something be 200% by weight and 12% by volume?
Hmmm ... maybe it makes a difference how the data is presented.
Purely by volume, the portland is 12% or so.
Could someone check my reasoning?
8 cu ft total, with 1 cf portland and 3cf aggregate.
So the 50 lbs of paper must add another 4cf to make it add up to 8cf.
1cf of 8cf is 12% or so (maybe 13%).
Cost-wise, it's still about a buck a foot, if all but portland is free.
Perspective is tricky ... LOL
TASHA
