Laying out vertical rebar during concrete pour:
Several photos of formwork on this page:
Cement Block Wall Footing
First time doing this (ready-mix coming in 4 hours!
). I want to get this perfect so that when I layout the block on footer I don't learn that I've screwed up and the rebars hit some blocks, and not all block cavities.
I will be using 8/8/16 block. Main wall 20' long and 2 courses high, then 4" solid block cap block, then bluestone tread cap. If my starting block is, say 4" from beginning of footer. Footing is about a foot deep:
1) First rebar should be placed where from that start line (which is where the first block will end) - some particular inches from that point to set it inside first cavity? How many inches? I have not dealt with block before.
2) I will go with the 24" on center rule, so from point suggested in answer to 1), every 24" precisely from that point, and I'll be safely in a cavity?
3) What length rebar should be used. I.e. - how far does rebar need to be set into footer and I'm assuming it should go as high as block cavities til cap allows, in this case 16" over footer?
4) If I'm unsure of where to put rebar as it regards corner turns, and other non standard features, is it alright to hammer-drill in after pour while setting block and set rebar in that way (I'll epoxy them in even if not necessary - I have extra).