Rebar placement
Rebar placement
(OP)
I recently had a contractor ask to use patio blocks to hold the rebar up (3") above the bearing soil, in this circumstance I said no to it and he got pretty irritated with me. Wondering if anyone else has used patio blocks as chairs? In further thinking about it I do not see it being a big issue, but I do not like the idea of a large discontinuity in the base of a strip footing....thoughts?





RE: Rebar placement
We don't allow blocks on suspended slabs but require chairs.
RE: Rebar placement
Did he provide #3 or #4 short @48" to help support the cont. bars?
RE: Rebar placement
AELLC can you clarify what you mean by short? Also I work in Canada so use the 10M rebar for continuous small loading foundations.
the rebar was 3 rows continuous with horizontals every 24". We compromised on a modified chair system (plastic) to provide the support.
RE: Rebar placement
RE: Rebar placement
As JAE noted, "no" to clay brick.
RE: Rebar placement
We used 48" oc, which is far part relatively, but we justified that by reasoning that pour doesn't get stepped into and the cont. bars don't get pushed down.
RE: Rebar placement
Clay bricks, because they swell are not used as noted by Ron and JAE.
Dik
RE: Rebar placement
RE: Rebar placement
RE: Rebar placement
RE: Rebar placement
But I question the wisdom of this unless loads are quite low. Also, consolidation around and inside the can will prove problematic.
I'll take a hoppy ale, please. Anything to help with the construction process.