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Old 10-15-2013, 04:51 PM   #16
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How deep should I dig for 20"Hx7"W concrete wall?


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Originally Posted by Live_Oak View Post
"So for this reason I decided to dig the Fence out, slightly move it away from sidewalk and place it on top (or inside) Poured Concrete Wall"

Guys, the fence will be "inside" the concrete wall, meaning that it's what's anchoring that fence. With no mention of fence posts going below frost line. With the fence merely anchored in a shallow not below frost line concrete "wall", it's going to need to be able to stand up to a winter wind pushing on it's ice filled privacy mesh. And that's why I said that the entire structure should go below frost level.
I've never seen fence posts be required to go below frost. Again they are allowed to float. Whether he places them inside or anchors them to the top it should be fine.

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Old 10-17-2013, 09:22 PM   #17
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How deep should I dig for 20"Hx7"W concrete wall?


Thanks guys for ALL of your responses!

At this time all I can say is I am not planning to go below frost line.
I will continue digging this weekend. Probably up to 18".

Of course there will be rebars and draining involved. I got very nice Black & Decker books...

I already called one of our local Ready Mix company. They gonna charge me APPROX $198 per sq yard of PS4000 (or whatever), if its gonna be just 1 yard. More yards cheaper.

I calculated 1 yard is what I need for this side. Most likely I will need another sq yard for another side.

That's all I can say for now. I will keep you posted!

Thanks again,
almazon
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Old 12-04-2013, 12:51 PM   #18
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How deep should I dig for 20"Hx7"W concrete wall?


Hello guys,

Remember me? Here's an update:

1. Wall is going to be 8". Not 7" as previously planned.

2. After leveling everything out starting from the lowest point of the wall on other side (9") I ended up with 29" at highest point of the wall. Not 20".



3. I dug for at least as same as height of the wall.
4. I banged Vertical rebars approx. 4-6" into the ground, 2" from the top of the wall and 16" from each other.
5. I also installed Horizontal rebars 8" from each other.



6. I finished building both Outer and Inner walls of the Form (shown covered temporarily with corrugated plastic)





7. On the bottom these walls are holding to each other with 1/2" x 12" Stainless Steel rods installed 4' from the bottom and 3' apart.



8. Each of these rods go through 1.25" x 8" PVC pipe that will stay there after concrete will be poured AND served as part of drainage.






Now, I am working on Stakes, Diagonal and Horizontal Bracing.

I have 2 questions:

1. What would you recommend to use to hold Form Sides together?
2. Will 16 gage wire loops do the trick?
3. Or should I go with the rods?

Also:

4. If the form will be secured on one side can I skip securing it on another side?

Thank you in advance,
almazon
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Old 12-05-2013, 06:08 AM   #19
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How deep should I dig for 20"Hx7"W concrete wall?


missed this thread,,, we work'd on the richmond off the outerbridge so, if i recall correctly, you don't get any appreciable frost in staten is - same as e nj, maybe 6" at the most,,, btw, what an amazing formwork for a diy'er

you ask'd 4 ?'s, not 2 i'd wire the forms w/tie wire - 24" spacing on the top row & 12" on the btm - drill a 1/8" hole, run wire thru, & secure to nail on the exterior - EACH side !

good luck !
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Old 12-05-2013, 05:24 PM   #20
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How deep should I dig for 20"Hx7"W concrete wall?


I agree with IRC about more ties on the lower part of the wall,but the upper part just nail some 2x4 across the top of the forms,save you from a lot of drilling.
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Old 12-05-2013, 05:50 PM   #21
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How deep should I dig for 20"Hx7"W concrete wall?


Lord knows he's used to 2 x 4's by now,,, good catch, woody
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Old 12-06-2013, 11:51 AM   #22
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How deep should I dig for 20"Hx7"W concrete wall?


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missed this thread,,, we work'd on the richmond off the outerbridge so, if i recall correctly, you don't get any appreciable frost in staten is - same as e nj, maybe 6" at the most,,, btw, what an amazing formwork for a diy'er

you ask'd 4 ?'s, not 2 i'd wire the forms w/tie wire - 24" spacing on the top row & 12" on the btm - drill a 1/8" hole, run wire thru, & secure to nail on the exterior - EACH side !

good luck !
Thanks IRC,

I am planning to do a PLENTY of wiring at both TOP and BOTTOM at 16" spacing.
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Old 12-06-2013, 12:08 PM   #23
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How deep should I dig for 20"Hx7"W concrete wall?


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I agree with IRC about more ties on the lower part of the wall,but the upper part just nail some 2x4 across the top of the forms,save you from a lot of drilling.
Thanks Canarywood1,

I don't mind drilling!
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Old 12-06-2013, 02:27 PM   #24
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How deep should I dig for 20"Hx7"W concrete wall?


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Thanks Canarywood1,

I don't mind drilling!
Your call!


Don't forget to use a release agent on the interior of the forms.
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Old 12-08-2013, 03:22 PM   #25
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How deep should I dig for 20"Hx7"W concrete wall?


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Your call!


Don't forget to use a release agent on the interior of the forms.
Now, that's interesting, since book suggesting Vegetable Oil.

What would you recommend?
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Old 12-08-2013, 04:04 PM   #26
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How deep should I dig for 20"Hx7"W concrete wall?


get a couple gallons of diesel & an old broom,,, if you use vegetable oil, it might attract rodents from the fresh kill btw, not even sure diesel's legal anymore but you are in staten island
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Old 12-08-2013, 06:53 PM   #27
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How deep should I dig for 20"Hx7"W concrete wall?


As IRC said #2 diesel would be my choice,has more wax in it than #1.
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Old 12-09-2013, 12:18 AM   #28
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How deep should I dig for 20"Hx7"W concrete wall?


Another issue with my project is that Winter is here. As of right now whole form is covered with 4 mil plastic. Of course I will look into mild days to finish wiring and securing the form, but...

How long do you think I will have?
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Old 12-09-2013, 04:50 AM   #29
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How deep should I dig for 20"Hx7"W concrete wall?


' How long do you think I will have? ' to what,,, finish it ? have any chance of finding conc blankets ? you can rent them from gamka in edison but you might also find 'em on s.i.,,, w/blankets, i'd pour lo-slump conc in the am on a 40f & rising day when nite temp won't drop below 30f & cover w/conc blankets for a wk - unfortunately, this is all based on weather in my head making off the previous ' iffy ',,, some pours we'd call 4 conc the next am & cancel when arriving @ 0-dark-30 that's conc ' life ' - best !
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Old 12-09-2013, 08:35 AM   #30
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How deep should I dig for 20"Hx7"W concrete wall?


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' How long do you think I will have? ' to what,,, finish it ? have any chance of finding conc blankets ? you can rent them from gamka in edison but you might also find 'em on s.i.,,, w/blankets, i'd pour lo-slump conc in the am on a 40f & rising day when nite temp won't drop below 30f & cover w/conc blankets for a wk - unfortunately, this is all based on weather in my head making off the previous ' iffy ',,, some pours we'd call 4 conc the next am & cancel when arriving @ 0-dark-30 that's conc ' life ' - best !
Thanks irc,

What I really meant to ask is how long do you think I will have for the form to withstand this weather before the pour?

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