- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
re: Post Tension Slab
Posted on 3/9/15 at 7:11 pm to daviddsims
Posted on 3/9/15 at 7:11 pm to daviddsims
OK, so you have to think about that tall area as extra living space in terms of heating and cooling.
In other words, a 20x20 den with 20' ceilings with take quite a bit more AC than the same room with 10' ceilings.
I'm seeing 3 units in your future. One up, two down.
In other words, a 20x20 den with 20' ceilings with take quite a bit more AC than the same room with 10' ceilings.
I'm seeing 3 units in your future. One up, two down.
1
Posted on 3/9/15 at 7:13 pm to VetteGuy
Going to make sure the HVAC contractor comes in and measures and runs a Manual J before sizing. That is the one area I want to make sure is correct.
Posted on 3/9/15 at 7:38 pm to daviddsims
Hell just dig out to a good solid material proof roll it and fill the void with cement stabilized sand and pour your slab
Posted on 3/9/15 at 7:38 pm to daviddsims
Agreed. 
Posted on 3/9/15 at 8:12 pm to daviddsims
Guy from work had one done here is SWLA and his cracks and foundation problems are horrible
Posted on 3/16/15 at 1:15 pm to thejudge
So we are driving piles and our contractor has given us the option of PT or Conventional.
What's the difference in price vs. quality? Is it overkill to have it with piles?
What's the difference in price vs. quality? Is it overkill to have it with piles?
Posted on 3/16/15 at 1:26 pm to Rev1897
Unless your soils are terrible, I mean really terrible, and you're going to have a lot of live load on your slab, I really dont see the need to drive piles and post-tension. The structural load is supported by the pile caps and grade beams.
Posted on 3/16/15 at 1:37 pm to elprez00
Any idea what the price difference would be between post-tension and conventional?
I've also heard that if you ever have to make repairs to the slab, PT is impossible to repair because if you cut into the slab you risk cutting one of the cables.
I've also heard that if you ever have to make repairs to the slab, PT is impossible to repair because if you cut into the slab you risk cutting one of the cables.
This post was edited on 3/16/15 at 1:54 pm
Posted on 4/12/15 at 6:08 pm to Rev1897
As an update: I have gotten plans from my engineer which include the option for Post-Tension or Conventional. I am also driving a ton of pilings.
The cost difference isn't that much (probably about $2,000), so it's really just up to how I feel. Right now i'm leaning toward Conventional.
The cost difference isn't that much (probably about $2,000), so it's really just up to how I feel. Right now i'm leaning toward Conventional.
Posted on 4/12/15 at 6:10 pm to Rev1897
quote:
I am also driving a ton of pilings.
I don't see the need to drive pilings and do post tension
This post was edited on 4/12/15 at 6:11 pm
Posted on 4/12/15 at 6:22 pm to stout
quote:
don't see the need to drive pilings and do post tension
Wait a sec... You're putting in pilecaps on a post tension slab? At that point you really have a structural slab and is no longer slab on grade. Structural slabs bring their own set of problems, just so you're aware.
Posted on 4/12/15 at 6:35 pm to NYNolaguy1
Right, pretty much every contractor has told me it's overkill to do 136 pilings (which I am) and PT, and they have recommended just going conventional.
Posted on 4/12/15 at 7:15 pm to Agforlife
quote:
Hell just dig out to a good solid material proof roll it and fill the void with cement stabilized sand and pour your slab
Yep...As someone (engineer) that deals with this shite daily ... this is what I (and the soil engineer I work with) typically recommend for a residential slab on expansive soil. Now there are some rare cases where piles are required, but that was on a really bad site with long term settlement issues. All a post-tensioned slab is going to do is keep the typical shrinkage cracks pulled tightly together. I'm not a huge fan as this method either.
A slab on grade is only as good as the subgrade preparation. (although, I've seen some slabs poured on pure crap/slop and nothing adverse happened). Proof rolling with a loaded 14 yard dump truck with no problems = good to go on a residential slab, IMO.
Posted on 4/12/15 at 7:17 pm to Rev1897
quote:
Right, pretty much every contractor has told me it's overkill to do 136 pilings (which I am) and PT, and they have recommended just going conventional.
You're likely wasting a lot of money... and DO NOT do post-tensioned/piles unless an engineer has designed it this way for you.
Posted on 4/12/15 at 7:54 pm to BoostAddict
quote:
You're likely wasting a lot of money... and DO NOT do post-tensioned/piles unless an engineer has designed it this way for you.
I agree it's a lot of money. However, the engineer designed in that way. The guy who is building right next to me just drove 114 piles and also did PT. I'm doing 136 and conventional.
Posted on 4/12/15 at 8:03 pm to BoostAddict
quote:
You're likely wasting a lot of money... and DO NOT do post-tensioned/piles unless an engineer has designed it this way for you.
This. Most commercial, high(er) rise buildings are designed with structural slabs. You don't need this for a house.
Page 5 of 5
Popular
Back to top
Follow TigerDroppings for LSU Football News