I need to install a new basement door at my in-laws house, which will
require new concrete to be poured under the door sill. The original
foundation was notched out lower, then someone later poured a slab outside,
so the opening under the door is a real mess.
My plan is to take down the current stairs, and attach a 2'x4' piece of
plywood to the existing concrete wall as a form so I can pour in more
concrete. Shouldn't take more than 4-6 bags of concrete. I'm planning on
drilling into each side of the opening and adding a few pieces of rebar to
tie everything together.
However, I'm wondering what the best and easiest way to attach the plywood
form to the existing foundation would be. I was planning on drilling holes
and using masonry anchor bolts, but I don't really want the bolts to be
permanent. I've never used Tapcon screws before. Would they be strong
enough to hold the pressure of the concrete, and are they removeable once