Shear transfer in concrete foundation wall repair

[charliealphabravo]

Hi all.

I am looking for some ideas to provide nominal shear transfer across the vertical joint between an old and new concrete foundation wall. In this case it is a full-height residential ICF wall (basement and main level). The damaged section will be cut out and the new wall poured/butted against the end of the old wall. In the past I have used a roughened surface and/or rebar dowels but I have been trying to think of a way to improve the shear transfer with some kind of keyed joint.

TIA

 

[MotorCity]

I would think using a keyed joint would be more labor intensive due to all of the sawcutting/chipping/hammering involved. I would stick with the dowels and roughened surface. If it is a vertical joint in a residential wall, you probably don't need any shear transfer, since these walls typically span vertically not horizontally.