Concrete wire reinforcement

[Gbkeith]

At what point does it become more cost effective to just use steel decking on beams and forget the rebar and concrete?

They usually use welded wire mesh when they pour a slab on steel deck.

 

[Texas97]

That wire mesh made it hell doing my tear out. It all came out in small pieces and a lot of it had to be cut. I don't know shit about fuck when it comes to concrete, but I didn't put the mesh back in.

I did use rebar and had fiber added to the mix. Its a 6" slab with 12" under the posts. I'm sure one of you cocksuckers will tell me all the shit I did wrong, but I just finished the pour this afternoon.

whatever providence says, do the opposite and you'll be fine

 

[M92PV4U]

10' x 10' x 5½" ⅜ rebar 1' on center

 

[bgaidan]

how many vibrators got lost in that clusterfuck?
looks like the kinda mats that both absolutely need them and absolutely snag them

None. But there were some voids on the underside that caused some concern with teh owner.

At what point does it become more cost effective to just use steel decking on beams and forget the rebar and concrete?

This was a wharf deck at a container terminal so it was over salt water and exposed to heavy traffic and container loads. Doubt there's a steel deck design that would have held up. The nominal deck thickness was 18", with another 6" cushion layer and 9" sacrificial paving layer and parts were thickened up to 3'+ over the columns and the beams that supported the container cranes were like 6' deep.

 

[Provience]

10' x 10' x 5½" ⅜ rebar 1' on center

Another wild post of somebody not using welded wire

Thank you, the system works

 

[M92PV4U]

Another wild post of somebody not using welded wire

Thank you, the system works

I don't have any pictures using the mesh.

 

[Provience]

I don't have any pictures using the mesh.

Good keep it that way

 

[M92PV4U]

Good keep it that way

.

 

[M92PV4U]

Good keep it that way

Oh wait.

 

[Provience]

Oh wait.

Thank you for demonstrating how welded wire is frequently mis-used in light duty flatwork because "gotta have some steel in there" mentality

 

[Texas97]

the more you hate on welded wire mesh the more i want to force contractors to use it.

i have to pull out my concrete book for the wwf equivalency chart.

oh #5 at 12" ocew? i got a mesh for that

 

[arse_sidewards]

i have to pull out my concrete book for the wwf equivalency chart.

oh #5 at 12" ocew? i got a mesh for that

Post that shit up so I can reference it.

Edit: Found one.

http://www.kleinreinforcing.com/filehandler.ashx?x=7944

How the fuck am I supposed to read this?

 

[Dethmachinefab]

 

[Provience]

the more you hate on welded wire mesh the more i want to force contractors to use it.

i have to pull out my concrete book for the wwf equivalency chart.

oh #5 at 12" ocew? i got a mesh for that

I hope you do they will continue to install it wrong

Alright, maybe your contractors will do "the right thing" and that will be the 1%. Still close enough for my 100% stance that it is a failure and oversold

 

[Provience]

Post that shit up so I can reference it.

Edit: Found one.

http://www.kleinreinforcing.com/filehandler.ashx?x=7944

How the fuck am I supposed to read this?

Just toss some scrap wheels in there "she's got steel, that concrete is good"

 

[Provience]

Surely some of that would have saved the 4×4 cap pad a few posts up. At least then you can get away with only using a handful of spacers and having a chance of it remaining above the bottom 1/2" of the pad.

 

[GonPostal]

This is what the rebar placement looked like during construction of the Containment Domes at Diablo Canyon Nuclear Power Plant, and here is a piece of what it looks like in my hand. It measures 2.25" in diameter. The Containment Domes can withstand a direct hit from a 747, and that hit would not penetrate the Domes.

 

[Alpine4x4]

So while we're on the subject....

Am I likely to be able to call up a rebar and column cage supplier and get prefab grids of 1/2 rebar so I'm not stuck tying rebar in an 18" trench? Are there standard sizes?

Probably not. You're going to need to call a wire company and get prefabbed welded wire mats made from deformed wire. Thats what we do for the majority of our 3-sided bridge work. Way easier to swing mats into place and tie the mats together than string a bunch of bars together.

Davis Wire, CRI, Insteel to name a few...

 

[Splib]

What was at Chernobyl ??

This is what the rebar placement looked like during construction of the Containment Domes at Diablo Canyon Nuclear Power Plant, and here is a piece of what it looks like in my hand. It measures 2.25" in diameter. The Containment Domes can withstand a direct hit from a 747, and that hit would not penetrate the Domes.

 

[Snowbird13]

This is what the rebar placement looked like during construction of the Containment Domes at Diablo Canyon Nuclear Power Plant, and here is a piece of what it looks like in my hand. It measures 2.25" in diameter. The Containment Domes can withstand a direct hit from a 747, and that hit would not penetrate the Domes.

Also known as #18 rebar. It's still in use today, but you don't see it often. I built a 9 foot deep slab/footing with it once. 4 layers of #18 bar that were 82 feet long. 1250 ish pounds per bar. Our best day we put 109 tons in a day.

 

[Snowbird13]

10' x 10' x 5½" ⅜ rebar 1' on center

Are you sure you tied that 3/8 enough? Might want a little more tie wire on there...

 

[M92PV4U]

Are you sure you tied that 3/8 enough? Might want a little more tie wire on there...

It is the correct way to tie it...

 

[Provience]

With as small as the pour is and as mild weather and decent drainage as you've got in the picture, you've been fine without it

At least you've got the wire barely an inch off the ground in the middle, self defeating the dobies

 

[Texas97]

With as small as the pour is and as mild weather and decent drainage as you've got in the picture, you've been fine without it

At least you've got the wire barely an inch off the ground in the middle, self defeating the dobies

 

[Steve300xcw]

It is the correct way to tie it...

For a simple slab/sidewalk/whatever? No thats a lil overkill.

 

[[486]]

What was at Chernobyl ??

soviet reactors are flawless
no containment structure necessary
nothing will go wrong because nothing can go wrong

 

[[486]]

None. But there were some voids on the underside that caused some concern with teh owner.


This was a wharf deck at a container terminal so it was over salt water and exposed to heavy traffic and container loads. Doubt there's a steel deck design that would have held up. The nominal deck thickness was 18", with another 6" cushion layer and 9" sacrificial paving layer and parts were thickened up to 3'+ over the columns and the beams that supported the container cranes were like 6' deep.

well, exposed bar near seawater, I'd be a little salty too

 

[M92PV4U]

With as small as the pour is and as mild weather and decent drainage as you've got in the picture, you've been fine without it

Look motherfucker, what do you want

At least you've got the wire barely an inch off the ground in the middle, self defeating the dobies

That is just the way the picture was taken.

 

[[486]]

For a simple slab/sidewalk/whatever? No thats a lil overkill.

I wish I knew how to tie bar like that
oh who am I kidding, I'd just keep on doing the single loopy dingledangle because it's easier and it doesn't really matter at all

 

[Provience]

Look motherfucker, what do you want

That is just the way the picture was taken.

I want to cut this damned pipe out of my driveway and easily remove large chunks of concrete

The shadows don't lie