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PROJECT PHOTOS
Concrete Forms, placing rebar January 2, 3, 4, 8, 9 & 10, 2003 |
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laying first pieces #5 rebar
placing tension on rebar
lapping 2 feet 6 inches
staking concentric rings
2 x 4s for bracing forms
showing offset chairs and rings
spacing 3.5 inches from outside form
a lot of lapping
rings aligned
starting raceway for stemwall
marking 25 foot radius and interior stemwall edge |
This system worked well for us as the #5 rebar was really stiff. We tried to bend it to make the curve, but it kinked and didn't curve. We overlapped as much as 36 inches in some places, but the requirement for this rebar is 2 foot 6 inches. We used the 2 foot stakes to place the tension on the rebar like weaving a basket. In and out, every other one. The chairs are not very supportive, but they hold the rebar the required 3 inches off the bottom of the ground. The final rebar will be placed today (Jan 4th) and we'll move the airform to the center of the pad. Checking the measurements of the stemwall to the airform is critical, we want to be exact. Then we'll place the vertical rebar in the stemwall (4 inches x 7 inches) for pouring.
sizing 3.5 inches away from edge
putting chair under rebar
two inner rings done, starting outside
placing rings on staggered chairs
staggering laps
close-up of chairs and stakes
stakes removed
waiting for vertical rebar
every four feet, plus bracing
showing stemwall size - 4 inches tall by 7 inches wide |