[jdlange]

Tai,

Just an update, the first batch I made did not work out so well, the mixture even after firing was to soft and the blast from the blower from my propane burner ate it up, however.........the refractory seemed to heat up very well, I think I shall try it with a higher content of some sort of bonder (concrete, portland cement, refractory cement etc) and give it another go. The refractory itself got almost white hot and the surface of it melted but did not appear to sag or anything, it just crumbled away a bit from the blast, so I think if I can just get it to set harder it will work (to much ash in this mix I think too).