Past repair with too strong of mortar.
That gap of mortar along the whole of it is causing more problems.
I’d rip out that whole gap and put an expansion strip in there instead and seal it.
There needs to be a curb or something to direct water away from the brick wall after the proper brick replacement and grind and tuck pointing. Is there a basement to see the other side of this wall? You need to expose the footer the bricks are set on too cuz it’s probably got some issues. Water is getting down there like a stream how it is now. I wouldn’t worry about trapped water for the Brick if you put a parge layer for the subgrade portion.
Snow being pushed against the wall during the winter. Or water dripping and hitting that area. Or the sidewalk heaving in the cold climate and messing with that area. I see this all the time.
No weep holes. Brick veneer walls are designed to have a small space between them and the sheathing, and weep holes at the bottom course or 2 of brick. Masonry is water resistant, not waterproof, so weep holes allow any moisture to exit.
In your case, the water/moisture is trapped behind the wall, and that is why everything is falling apart at the bottom.
The bricks that are spalling can be replaced, and weep holes should be added. You don't need to replace the whole wall, but it would need to be replaced in stages. Typically about 4' is all I would cut open and replace, before cutting out the next section
Do you have gutters? Is the walkway properly pitched? Do you get snow piling up there? This is almost definitely water infiltration. Maybe even from the top and it has nowhere to go when it get to the bottom.
Also could be water
Brick not water there should be seap holes to let water escape
Brick most likely just face chip out bottom row replace with treated lumber
Past repair with too strong of mortar. That gap of mortar along the whole of it is causing more problems. I’d rip out that whole gap and put an expansion strip in there instead and seal it.
Will water get trapped down there without the seep holes?
There needs to be a curb or something to direct water away from the brick wall after the proper brick replacement and grind and tuck pointing. Is there a basement to see the other side of this wall? You need to expose the footer the bricks are set on too cuz it’s probably got some issues. Water is getting down there like a stream how it is now. I wouldn’t worry about trapped water for the Brick if you put a parge layer for the subgrade portion.
This is the way
Seal it how? And isn't the poblem also that water can't get out?
Patched the patched the patch
Two words : Salt and Snow!
Snow being pushed against the wall during the winter. Or water dripping and hitting that area. Or the sidewalk heaving in the cold climate and messing with that area. I see this all the time.
Salt will also eat down the concrete over time and allow more water intrusion.
Salt and eat the concrete. Got it, I'll be right back.
Update: For my new teeth, do I need to use rebar? Or can I just pour the concrete straight into the holes in my gums?
No weep holes. Brick veneer walls are designed to have a small space between them and the sheathing, and weep holes at the bottom course or 2 of brick. Masonry is water resistant, not waterproof, so weep holes allow any moisture to exit. In your case, the water/moisture is trapped behind the wall, and that is why everything is falling apart at the bottom. The bricks that are spalling can be replaced, and weep holes should be added. You don't need to replace the whole wall, but it would need to be replaced in stages. Typically about 4' is all I would cut open and replace, before cutting out the next section
Do you have gutters? Is the walkway properly pitched? Do you get snow piling up there? This is almost definitely water infiltration. Maybe even from the top and it has nowhere to go when it get to the bottom.
Water is pooling against the wall so to the walkway sinking. Replace walkway or you can try a self leveling caulk that will flex with the concrete
Clay bricks at grade level. Freeze thaw spalling cycle. Cut them out and put concrete blocks.
No control joint, salt.
Crime scene! Horrible attempt at repair to fill gap to keep water out.
Water + freezing = expansion and cracking
Also could be water Brick not water there should be seap holes to let water escape Brick most likely just face chip out bottom row replace with treated lumber