Thanks for the reply. I thought mortar/cement cure in 28 days? The original mortar on my house doesn't rub off any sand, although it is 4 years old. What makes a repair different?
I live in Charlotte, NC and have a 4 year old home on crawlspace with a curtain wall / pillar type of foundation. I had some major foundation issues that were repaired (via helical coils) and the last step of the repair was to fix the cracks in the brick/mortar in the curtain wall.
The brick...