DIY foundation repair

I fixed my cracked patio for about 60$. The long term plan is to build a rocket mass heater right where my patio was crumbling. I'll add links to the other relevant videos for this larger porch renovation as they are completed.

[jamesdean]

Former Special Inspector here....according to ACI and ASTM standards, minor surface rust is permitted on rebar as long as it is not scaling or affecting the dimensions of the rebar and/or it's deformations.

[jonathanmezzenga]

Concrete for this type of use does not require rebar. Most houses in my area are built on 4” slabs and as a structural engineer I’m regularly calculating maximum loads they can handle from things like beam reactions, etc. I’m not sure why your slab had that large of rebar so close to the top edge of the slab other than for temperature/shrinkage crack control which can easily be achieved with wire mesh. They should not have reinforced your slab to begin with, but this definitely was an education video to see how one can preserve exposed rebar. Thank you!

[mmmbiscuits]

The fact that there is any rebar in a residential patio that old is a miracle.

[flyoverurbangarden]

You need to make more videos, they're excellent.

[VenturiLife]

It's completely normal for re-bar to rust to an extent inside the concrete, but it should be sealed, and that corrosion stops at some point. If the rebar is exposed or there is a crack etc. allowing water / air ingress then it will continue to rust until it eventually fails.

[moirarussell]

Thanks for showing the most perfect possible way to do that. I’m so glad I stumbled across your channel.

[carlospinheirotorres]

Great job, thanks for sharing this wholesome bit of time ♥️

[PavolSeman]

Hello. I am personally convinced that the iron reinforcement should be in contact with the concrete, which protects the iron from corrosion with its anticorrosive behavior. When I was repairing such a malfunction, I removed the loose material, rubbed the iron reinforcement with a rust remover to neutralize the corrosion layer, and then sanded it down and poured it with concrete, which bit into the iron and protected it from corrosion at the same time.

[Williamgoodjob]

your good for a kind person..ive learned a lot thanks bro.. keep on posting more videos..

[brendameader]

I watched all your videos dude! make some more! Greenhouse here we come, ill stay tuned!

[markspc]

The philosophy of rebars in concrete it to give tensile strength, the reason is that concrete does not do well under tension load.
As a structural engineer, I see no tension load path in your exposed rebars. You can see it, after removing the concrete, the porch slab did not disintegrated. So what it is telling you that the rebars are totally unnecessary.
If I were you I would expose about 6 more inches of the rebars, saw it off, roll it into a wad and try to find who put those rebar on a porch slab and you can complete the sentence for me.
Good luck with your repairs.

[HigoWapsico]

I love what you’re doing, it’s exactly what we need more of.

You already have plans for a greenhouse?

[dans]

remember that ya oughta add the acid to the watah.

[thegreenviking]

Glad i found your channel... liked and subbed... new stalker here.. :P

[charlieb]

Great video. Big question; given rebar is popping cement off side of foundation, should that rebar be removed prior to resurfacing facia on side of foundation? House was built about 1972.

[EricWebSurfer]

Where is your video you referred to where you built the awning?

[richardrgarabedian]

Who could I call to do this kind of repair work on my garage. ? If anyone knows? My warranty company "says" it could be a good while before they find someone who can come out and fix my protruding rebar.

[Idontknow-mftx]

Your awning video is not available anymore?

[JustMe-tecz]

Modern concrete is junk. The steel rebar actually breaks up the structure, as it vibrates with any seismic event. It's like adding a jackhammer inside your slab and walls. If you jacket the rebar in PVC pipe, that would help, but it doesn't solve the issue entirely. Ancient concrete used fibers as reinforcent, and those structures are hundreds of years old. Typically, these are called unreinforced concrete, but it's anything but that. They used silica fibers, asbestos fibers, and others. Actually, concrete water pipe manufactured today often contains asbestos fibers. It is considered to be safe in water pipe. There is no reason to preserve the steel, just let it rust. Add glass fibers or nylon fibers to your concrete mix. Lightweight, self leveling concrete contains some fiber and certain additives and is three times stronger than what you patched it with.

[copernicusvanstruselclit]

Hate to be that guy, but the title is really misleading. Slabs are typically not structural (this one is not), they are referred to as flatwork.