What size hydraulic cylinder is recommended for pressing the concrete cylinders?
@asconstruction41462 жыл бұрын
Jack house up repour not easy
@MajorCaliber2 жыл бұрын
Paging Metro Tex: What was the *Final Price $$ Tag* to fix this buggered up house???
@jenniferlyons41503 жыл бұрын
If they fail, what's the point if using post tension? Time? Cheaper?
@sa32704 жыл бұрын
This makes me extremely leery of post tension.
@jcraigshelton4 жыл бұрын
That’s not from a single cable failure.
@hi-ye4rz4 жыл бұрын
That's a big lawsuit
@semitrucker4 жыл бұрын
Holy s
@lynchmob19684 жыл бұрын
They installed carpet asap over that hack job.
@NeogenicOrg5 жыл бұрын
I have an issue, plumber had the trenching workers jackhammer a path for sewer replacement, they jack hammered the large concrete beams that are lower in the slab, now the side of the house has cracked in many places and is puling towards the open trench, I've got several 20ton bottle jacks holding the trench open. The movement has ceased since the bottle jacks were placed, they want to drill into each side of the trench and install #5 rebar an epoxy it in, then back fill dirt, then pour concrete. Should the concrete density be matches to the original concrete? 5000psi calls for 500psi? Will the PT cables need tensioning after they have poured concrete for the repair?
@charlesm87065 жыл бұрын
several neighbors are having cracks Develop In their post tension slabs. Is it possible to peruse litigation against the builder ro repair my foundation!
@MajorCaliber5 жыл бұрын
IIRC, USA and Canada only 2 countries on Earth that still allow UNbonded post-tension tendons. When that "tube" is below grade, water/moisture intrusion is certain to happen, even in arid climates, making rust-induced failure inevitable. OTOH, the home in this video looks to be low-grade construction in all aspects, erected by a hosebag contractor, in a jurisdiction with lame codes and/or lazy inspectors.
@TheBoondockSaints5 жыл бұрын
Hahaha that's what happens when you buy a pt house and neglect it
@petersrightbut82976 жыл бұрын
Actually, been working around post tensioning 30 yrs, never saw It fail, all commercial parking garages ,high rises.
@johnarwine22475 жыл бұрын
Crews installing them in commercial environments know how to do it right... :)
@ALYAZEEM4 жыл бұрын
It seems for me that this is a soil fail under the slab which cause high stresses in the slab
@johnsweeney60726 жыл бұрын
Poor footings also looks like poor compaction as well as the cable and slab fail shocking
@ericwsmith77226 жыл бұрын
Not sure what the soil conditions were to require post tension cables to support the house as opposed to more traditional foundation techniques, but from the looks of the outside, corrosion may have led to its failure, I would guess It not being a bridge they got sloppy on grease and any type of coating, and it just rusted away to the point of failure.
@westonfoot6 жыл бұрын
This is a concrete failure not a post tension cable failure.
@somenathsikdar57897 жыл бұрын
what is the name of the hydraulic jack used here ?
@sonnygilcrease82017 жыл бұрын
can post tension fail from a direct lighting strike causing spaling throughout the house and knocking about a 8inch piece of concrete to shoot up and dent the ceiling in 3 different places, And causing multiple crack throughout the stained concrete floors and bowing one interior wall. Will this continue to get worse or will the insurance company attempt to pier the floor all over and refinish the floors back with what I had acid concrete floors. To the short question what is the likely hood of the insurance starting from scrapping this house and starting over ?? Thanks
@martinnovelo43519 жыл бұрын
For whta i saw Looks like it did have tension or else that anchor head wouldn't have kicked out off the conrete and this slab like lots of them should get strssed 50%the next day that was poured and when the concrete is at full psi strength you can stress it at 100 force wich it might be about 33 kips or so
@markgipson62989 жыл бұрын
looks to me like the slab failed not the cables. If the slab did not have the tension you would only have a crack. The reason the slab is trying to crawl up onto itself is the reaction to the tension..
@vanscoyoc10 жыл бұрын
post tension is junk.
@BenjaminEsposti6 жыл бұрын
Yeah it might have caused a bridge collapse in florida recently.
@MajorCaliber2 жыл бұрын
I was tempted to say it's not junk, but you need a degreed PE all over it, not Joe Blow backwoods contractor, BUT... there's the horrific FIU pedestrian bridge collapse of 2018, and that was a "showcase" project and had BIG NAME Engineering firms all OVER it, so, yeah, maybe stick with the tried-and-true, i.e. a bit more concrete and a bit less daring.
@365Condoms10 жыл бұрын
as long as everyone gets it clear. Post tensioning is an excellent technology, but it cannot be trusted into amateur hands. that anchor to me it looks a bit like MK4 or freyssinet with '6 strand in it. failure is of the concrete, not a cable as well. 1: failure of the concrete 2: failure not during stressing 3:can only be caused by deformation of the building after (by the looks of it) it was build 4: find out how is the foundation of the building, because these things only happen during tensioning (poor workmanship or quality of concrete (concrete cover)), or after many years of strand rusting. bonded post tensioning solves problem in one shot
@Karangee10 жыл бұрын
Trashed unfixable
@365Condoms10 жыл бұрын
could be fixable if cable is not too buggered. for the starters: unbonded post tensioning: we are not in the 50's anymore. bonded is excellent, however you need people who know what they are doing to design and install
@chriswebb8106 жыл бұрын
So the tension cable is in the slab? Did t realize they did that for residential. Why? What’s simpler than rebar?
@MajorCaliber2 жыл бұрын
@@chriswebb810 Can get away with less concrete/thinner slabs. Also, since slab is under constant compression (usually in both axes), less worry about cracking due to bad mix/thermal contraction/slight settling/etc... but compared to conventional methods, easier to get wrong and harder to get right, NOT for amateurs.
@kikyouthekillermiko11 жыл бұрын
for that place? Yeah...demolish it and build new! or burn it and mark it as an ancient idian burial ground That place was horrid. Who ever built that house or put the okay on those cables should be sue...hell everyone with that house should be sused even the home owners.
@solomoncobb154211 жыл бұрын
I see it now. You had a lazy contractor that didn't grade right, and probably also put too much water in the concrete, because the slab was not uniform in thickness, and way too thin in areas. The cables may have been too close to the top of the pour also.
@solomoncobb154211 жыл бұрын
Seems like there was a problem with the mix or the amount of water in the concrete, rather than the post-tension cable. Maybe the placement of the cables.
@RegerAj11 жыл бұрын
Is there a fix?
@CoolHippy4 жыл бұрын
@Ballsacksaswinging duct tape and Bondo... Come on everyone knows that lol
@Michshnly11 жыл бұрын
what's yer e-mail. I have a question about post tension cable here in Arizona. Thanx.
@poisonstrategy3 жыл бұрын
did it ever get answered
@mikewiththebluecar12 жыл бұрын
@cableguy628 the slab thickness only 4 to 5 inches on a post tension slab? With the thickness of the cable around 5/8" to maybe 3/4" that doesnt leave much concrete above & below the cable. I would expect at least 6" thick slab for the tension they put on it, but I'm not an expert on post tension slabs just concrete demo. Perhaps that explains the failure.
@kodyneal63793 жыл бұрын
12 inch slabs here in Arizona for post tensions. Plenty of spacing between cable and top
@MajorCaliber2 жыл бұрын
@@kodyneal6379 Wow, 12 inches, that's huge... then where is the "savings" from PT techniques? Here in sandy, close-to-the-water-table Florida, even a heavy 2-story *concrete block* (CBS) house (with concrete roof tiles and concrete 2nd floor) is going to do fine with a conventional 6" slab... of course that slab ties into a much deeper inverted-T/L shaped footer wall all they way 'round, and that footer is what actually carries the load. How do they do it in AZ? Is it just a monolithic reinforced slab, and they skip the surrounding footer altogether? That would be a big savings, labor, rebar, etc.
@StreetArtillery13 жыл бұрын
Thank God I saw these evidence of post tension tech. I was going to apply it in my plans to build an all concrete garage with a 25 foot span, but now I´m not sure. Your slab look too thin tho. At 2:04, it looks like the thickness is 2 inches, or is that just the shadow? Why didn´t they use rebar in combination with the tension cable? The rebar would have worked as back up.