I am patching in a 12 " by 12" by 4" 3-4" thick area that I had to crack concrete out of to replace a shower drain assembly. I have drilled the perimeter with 1/8" holes and sunk 2 1/2" masonary nails (two on each side total 8) to act as keys and was going to pour a fast curing cement and sand mixture. The manufacturer (rapidset) has a concrete mixture but said for my application no aggregate would actually be stronger. I have heard about sinking 3/8" rebar sunk 3" with Simpson glue. Also, it has been suggested that I might use concrete with an aggregate mixture. But rapidset seemed to think as I that masonary nails would also be a good idea. I also think with the area I am filling what I am planning seems more than adequate. I cannot even remove the nails with vice grips now they are in so tight! Any advice from people who actually do this. Are the varying opinions I am getting correct, or is rapidset correct. Thanks.
- posted
20 years ago