garage concrete wall deteriorating

Help Support House Repair Talk:

dk_99

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Jul 16, 2020
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Hamilton, Ontario
The concrete portion of the wall is slowly falling apart in the garage, I am assuming it is from water/moisture. The location is exactly in the same location of the front porch.
The porch is made of poured concrete base, sand and patio stones. The borders are glued down.

How can I fix this? Do need to tare down the porch?

There is also some efflorescence along the wall further away from the porch, I an presuming that it moisture either from the ground in contact with the concrete wall and/or the snow that collects against the wall.

What type of sealer can I used, after I dig the dirt away from garage wal?

I have included pics.
 

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