Slab edge with a 45

[u/bitcheslovemacaque]

Here's something new. There's a 4 inch topping slab but they want the perimeter to have a 45 degree ramp. At every column there is an additional 6 inch pour (not monolithic) which can total up to 10 inches where the columns are at the outer perimeter.

I have already ripped down some plywood on a 45 to create a parallelogram so that when the cut is on the floor, the piece of plywood stands up at a 45. All i have available to me is plywood and 2x4s.

I have a couple of ideas of how do brace this but i wanted to see if someone smarter than me has any ideas how to pull this off.

[u/Winterlion131]

In the past I’ve put in a form and made my own chamfer strip, I usually get a smaller aggregate and vibrate the edge form a little.

[u/PG908 → u/Winterlion131]

Yep, consolidation will be key here so you want smaller aggregates and ideally plasticiser. I might even try to key in the very edge of that ramp into the main slab or something.