Hi,

There is a stop against our garage door that has rusted and needs to be replaced. This is how it looks:

qVdMJAc.jpg
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Of course, it can be replaced, but the question is where can one buy such items and how big a job is it?
 
Rickard.
They are usually fixed with rebar stubs into the concrete. Google tröskeljärn and you'll see, unfortunately, I don't have a good idea on how to get it loose.
 
with a good demolition hammer you can remove the old material in 1-2 hours
you'll probably have to chisel up about 15 cm inside the iron, then you can drill in some dowels into the old concrete and maybe apply some adhesive
then place the new iron and fill it in with some fine concrete
 
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Mats B2
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Make sure the new iron is hot-dip galvanized so you won't have to redo this ever again....
 
I see that you have a sectional garage door; previously, it used to be two swinging doors. That angle iron has now outlived its purpose.

I would have chipped away parts/all of the concrete on the outside and some on the inside, then I would have cast new concrete from the asphalt into the garage, with a slight uphill slope on the inside and then a slope outward. I would place the crest of the slope 1-2 cm inside the door.
If you want, you can cast an angle iron right where the seal strip on the door hits, so there won't be any wheel tracks that the rubber seal later won't seal against.
 
That reinforces my opinion that threshold strips shouldn't be used.
If you only have concrete, it becomes smoothly rounded and kinder to the tires.
Also doesn't rust

Protte
 
prototypen prototypen said:
That reinforces my opinion that one should not have threshold irons.
If you only have concrete, it becomes softly rounded and gentler on the tires.
It also doesn't rust

Protte
Greater risk of it cracking though. Have seen several that have been cast and where it cracked after a few years despite being reinforced.
 
R roli said:
Make sure the new iron is hot-dip galvanized so you won't have to do this again....
Hot-dip galvanized? Isn't it just a surface treatment? This is in an exposed area, so it will likely wear off? Isn't high-quality stainless steel better?
 
Several/a few years ago (fall 2015) I did exactly as I described earlier except that the peak is about 1dm inside the gate, the peak is right at the seam between the old concrete floor and the new casting.
No cracks are visible yet, except a little right at the seam between the old & new concrete, but those cracks are so small that they are barely visible.
 
S snowjim said:
Hot-dip galvanized? Isn't it just a surface treatment? This is in an exposed area, so it will wear off, right? Isn't high-quality stainless steel better?
Yes, it is, but it adheres well because it's applied in a bath of molten zinc and not "painted" on with a brush. Why would it wear off? How often do you drive in and out with the car? All the guardrails along our roads are hot-dip galvanized, and they hold up well against rust. If, against all odds, you do wear off the hot-dip galvanization precisely in the wheel tracks, it will likely result in the rust being worn off as well. You'll definitely avoid having the metal rust away at the edges like in the original image. Sure, stainless steel is even better, but it also has a much higher price.
 
R roli said:
How often do you drive in and out with the car?
99.9% of the times we come home, we drive the car into the garage, it's at least 300 times a year
 
Edge strips on bridges are also made of hot-dip galvanized steel and we're talking about maybe 50,000-100,000 crossings per day and sometimes even more. And there have not yet been any requests to replace hot-dip galvanized steel with stainless steel because the hot-dip galvanized steel suffices and works excellently. Here we can talk about the galvanization wearing away in exposed areas but remaining in all other places, and where the galvanization wears away the rust also does, so the steel does not rust away. It is the wear and tear that determines the lifespan of the edge iron.
 
R roli said:
Sure it is, but it holds well because it's applied in a bath of molten zinc and not "painted" on with a brush. Why would it wear off? How often do you drive in and out with the car?
Our garage is not used for a car, but we still walk back and forth a lot here. Additionally, the pellet pallets come in this way and have hit that strip a few times, which is one reason it's completely bent.

Leaning towards just casting, but to do that, I first have to break up a lot. Do you think it will work to break up with this:

BORRHAMMARE MAKITA 800W HR2630J SDS-PLUS.
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I've previously used it to break up tiles, which worked excellently. This is likely to be a tougher job, though.
 
No machine to chisel concrete with that, rent one instead.
 
I sawed a smooth edge with the angle grinder and a diamond blade.
 
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snowjim
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