G'day Mike, xcuse the delay in replying.
I have had alternate advice from a different source and so I have been cogitating. (my head hurts)
The alternate advice was to have the formatube go pretty much right to the bottom of the excavation and just leave it there.....period.
Mike I'm going to run with your advice (I like it), but I am a little unsure of pouring fresh concrete on to (even day) old concrete.
Would it be wise to put a layer of 'bondcrete' on top of the pier stub prior to finishing the pier part ? Also, I had a browse through Bunnings yesterday and the only things I saw that looked like they were meant to go into concrete to anchor were like large staples made out of about 8mm twisted steel. They were also heavily rusted which I think is not good.
Another question, do you think there would there be any gain in placing the 75mm starter tube about 12-16mm above the general footing level to allow a fillet to form, reducung the risk/tendancy for cracking?
Thanks in advance,
Doug
|