Retaining wall with stone veneer to slab on grade transition 1

[DoubleStud]

Hello fine folks,

Lets say I have a retaining wall with stone veneer on the front side (probably supported with either angles mounted the the wall or drystack CMU), how is the best way to do the slab on grade in front of it? The slab on grade will have veneer on top of it. Do you stop the slab on grade in front of the vertical stone veneer? Do you go below the stone veneer? Do you dowell rebar into the retaining wall? I am just worried the slab will have vertical movement and mess up the vertical stone veneer. Do I put expansion board between stone veneer and the slab? Maybe I am thinking about this too hard.

 

[jayrod12]

We usually request to stop the slab in front of the veneer to avoid issues with the slab on grade heaving and damaging the veneer. If that's a no go, then we dowel the slab to the wall. But that opens up a whole host of other design things to consider regarding both the slab, and the wall.

 

[DoubleStud]

Jayrod, do you just pour against the veneer? The veneer will have rough finish, wouldn’t you have a problem anyway because the concrete slab will lock into the vertical veneer? Do you put expansion joint?

 

[Enable]

Use a an expansion joint between the slab and the veneer. But don't user fiber board as it won't conform nicely. Use a foam alternative that will contour nicely to your rough finish.

 

[jayrod12]

Enable has the right of it.

 

[DoubleStud]

Ok, how about if I make the slab structural, how do I support the slab at the retaining wall and how do I detail the vertical veneer? Can I let the veneer sit on top of the slab? Put form void below the slab?

 

[dhengr]

DoubleStud:
You could stop the slab 4 or 5" from the stone veneer. Form the slab with a 10" thickened edge, so you end up with 10" deep trough btwn. the slab edge and the stone veneer. Fill this trough with small river rock to within about 2" of the top of the slab. Don’t make the trough to wide, so people can’t really get in there and kick the river rock out, or kinda trip/step/fall into the trough.