Residential Post Tension Slab

[low_tec]

Sorry, but I'm old school. I don't believe in post tension slabs.

They're real. I've seen them.

Haha Curt

Then you must be real old school
Post tension slabs have been around since the 1950’s I think

[low_tec]

Building a new house and got a bid on a Post Tension Slab and wanted to see if this was in line with a standard residential slab. Quote was for 4" slab with 3,000 PSI concrete with 10" X 24" beams? What do the experts here say?

Beam size is determined by the PI of the soil, but what you have listed is typical in our area with good soil

[mjhaverkamp]

I would imagine the cable company engineered this slab, they would have had to of had soil report in order to do so, any reputable cable company will not stamp or approve the cable layout without them inspecting it before the concrete is placed, from the specs it sounds like you have good soil report and not any excessive fill in your pad.

[meltingfeather]

Building a new house and got a bid on a Post Tension Slab and wanted to see if this was in line with a standard residential slab. Quote was for 4" slab with 3,000 PSI concrete with 10" X 24" beams? What do the experts here say?

what's the question?
You want an assessment of the slab design?
What's it sitting on? What are the dimensions of the slab and the beam spacing?
There's not a lot to work with here. What do you want?

[7sdad]

what's the question?
You want an assessment of the slab design?
What's it sitting on? What are the dimensions of the slab and the beam spacing?
There's not a lot to work with here. What do you want?

From above.

A/C portion of the house is 2150 sq ft
Total slab with porches and garage is 4,114 sq ft
Flat ground for the most part with good soil.

[mikemorvan]

Did an engineer design / stamp that design? Or, is it your builders design?

[cattlelackranch]

That doesn’t look like a post tension foundation to me.
Beams usually run the entire length of the house for cables to have a live and dead end. It will have cable lengths and list if they are surface or beam cables.
Hard to read any of the fine print on the plans.

[meltingfeather]

From above.

A/C portion of the house is 2150 sq ft
Total slab with porches and garage is 4,114 sq ft
Flat ground for the most part with good soil.

Hard to read, but I don't think that's a post-tensioned design.

[mikemorvan]

That doesn’t look like a post tension foundation to me.
Beams usually run the entire length of the house for cables to have a live and dead end. It will have cable lengths and list if they are surface or beam cables.
Hard to read any of the fine print on the plans.

agree

[BlackoutRam2500]

Post tension slabs are fine IF DONE CORRECTLY. The trouble down here in SE TX is finding concrete subs that have been properly trained.

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