Footing Cover
Footing Cover
(OP)
Gentleman,
What would be the minimum depth for the footing of a wall? Could it be 8"? Footing is directly cast againist earth. I am looking at ACI318 req. of 6" of cover ABOVE reinforcing. So if I use a #5 bar, with the req. 3" of cover on the bottom and 6" on the top, I find 8" impossible. Am I missing something?
Thanks!
What would be the minimum depth for the footing of a wall? Could it be 8"? Footing is directly cast againist earth. I am looking at ACI318 req. of 6" of cover ABOVE reinforcing. So if I use a #5 bar, with the req. 3" of cover on the bottom and 6" on the top, I find 8" impossible. Am I missing something?
Thanks!





RE: Footing Cover
RE: Footing Cover
(Even if ACI isn't refernced, it seems like a good idea)
RE: Footing Cover
RE: Footing Cover
DaveAtkins
RE: Footing Cover
RE: Footing Cover
RE: Footing Cover
RE: Footing Cover
RE: Footing Cover
RE: Footing Cover
DaveAtkins
RE: Footing Cover
RE: Footing Cover
RE: Footing Cover
RE: Footing Cover
I don't believe the concrete is not used because it is "contaminated" The 3" coverage is for protecting the rebar. Yes, the concrete in tension below the effective rebar depth (below the neutral axis, for that matter) is not considered in the analysis.
RE: Footing Cover
RE: Footing Cover
http://nrmca.org/aboutconcrete/cips/29p.pdf
RE: Footing Cover
RE: Footing Cover
RE: Footing Cover
Just to be clear (pun intended?) the 6" requirement is above the bottom reinforcement, not necessarily clear cover for top reinforcement. For example, if you have top steel in a footing to resist uplift, the cover is not required to be 6".
RE: Footing Cover
RE: Footing Cover
htt
See page 55, block T062. also great for running a #5 continuous for frame construction...
RE: Footing Cover
For that condition, I think I would lap the vapor barrier into the block ~2"