Thor, or should that be Zeus?

[Tom J]

Really? I was under the impression this was a fairly dry mix. Without the plastisizer it wont even bond.

Should add that the mix goes through bed/slipper which is kind of mold and is compacted by packshaft with fingers - layer of concrete is 12mm thick and travel 1m/s speed.
In your case vibrating plate is a must. Curing process is complex too (4 stages with extra water), retarder is used to slow curing process.
Since I work there, I use min amount of water (just for mix to be not brittle) - for diy concrete job