slab to top of grade wall 1

[JStructsteel]

Whats the preferred detail to a grade wall for a concrete ramp? Slab w/ keyway, or bent dowels? 4" slab w/ mesh

[URL unfurl="true"]https://res.cloudinary.com/engineering-com/image/upload/v1706988620/tips/top_of_wall_tpfvyq.pdf[/url]

 

[JAE]

I've tended to shy away from keyways and use a roughened surface (1/4" amplitude per ACI) and use dowels.

 

[dik]

Same here... and put a reglet on the exposed side to get a clean 'pour' line.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[DoubleStud]

Why not stop the wall 8" short with dowels sticking out and you pour the slab over the wall?

 

[JStructsteel]

I could stop it short, but would be a bit harder to form for contractor. I was envisioning they grade to top of wall, compact, and then pour a flat slab. There is some railing, so perhaps 8" would be better for the railing to be anchored.

 

[bridgebuster]

You could bring the wall up the thickness of the slab and pour the slab against it; put in some premolded filler between the wall and slab. Then you have to make sure the contractor compacts the fill properly along the wall.

 

[JStructsteel]

Bridgebuster, the Architect doesnt want a joint on the horizontal surface.