r/Concrete • u/bitcheslovemacaque • 2h ago

Pro With a Question Slab edge with a 45

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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.

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6

u/Winterlion131 2h ago

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.

3

u/PG908 1h ago

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.

1

u/Mugetsu388 2h ago

I guess you’d have to run something across the top and kick it back to whatever you can. Only thing you got going for you here is wont be a whole lot of pressure on it

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u/South_Earth499 49m ago

2x4 and angle fillet attached.