I'm going to pour a 3x6m slab soon. It'll be rebated for blockwork, 2 walls with 100mm and 2 walls with 215mm blocks.
Using 3x2 timber looks like it may work. At least for the 100mm rebate frame:
When it gets to the 215mm rebate, things look a bit more ropey:
I'm worried that either 1) the upper section of the form will start to float on the concrete and distort my level or 2) the concrete will flow under the upper section and run out of the form all together.
Any tips/tricks or bits of knowledge I'm missing here?
Cheers,
Fubar.
Using 3x2 timber looks like it may work. At least for the 100mm rebate frame:
When it gets to the 215mm rebate, things look a bit more ropey:
I'm worried that either 1) the upper section of the form will start to float on the concrete and distort my level or 2) the concrete will flow under the upper section and run out of the form all together.
Any tips/tricks or bits of knowledge I'm missing here?
Cheers,
Fubar.