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Removing 11ga Steel Tubing from Concrete?

22K views 50 replies 25 participants last post by  Hanzelz  
#1 ·
Hey Guys,

I didnt know where else to post this...

A few weeks ago, a gentlemen called me wanting new Gaurd / Hand Rails. He wanted me to make new Rails, with the same style and look of the old ones. The old Rail Post were rotted out. So I simply used a grinder with a cutting wheel and cut the post flush with the concrete slab. Now the Rails are done. I am going back tomorrow to remove the Slugs (Post) from the concrete. Im assuming they are 3"- 4" in the concrete. (1"X1" 11ga post) I was planning on using a 1/2" Masonry bit and drilling a series of holes around the Post and using a pair of Channel Locks and wiggling them out? Is there a easier or faster way to remove these post? I cut them flush with the concrete (Not my brightest idea) There is 7 total post.

Any help or advice will be greatly appreciated.

Thanks Don.
 
Discussion starter · #4 ·
Ditto, if you drill holes around the outside of the imbedded post I'd be careful that you don't break away the edge.
What about base plates anchored over the cut off posts and weld the new to them. If you go that route make sure you fill the hole so water doesn't get in there and freeze....Mike
I like that idea. Base plates.

In all honesty, Im 22 years old. I have only been running my own Welding business for about a year. I dont have a Core Drill or bit. Its definitely on the list of things to get. I just dont have the $600.00+ to spend on it right now.
 
Discussion starter · #6 ·
The Post that are anchored into the slab right now are 40+ years old. There paper thin and rotted. When I got there the one side of the existing rail was on the ground. The post were so rotted, the railing fell over on its own weight.
 
Discussion starter · #8 ·
This is a rush job. I wasnt scheduled to do this install til this coming Friday, but the Home owner asked me if I sould have it done for the 4th of July. So I moved my schedule around and I have tomorrow and wednesday to get this done. If I cant remove the existing Post from the concrete, Im gonna fill them with Hydro-Static cement and go the Base Plate route. Its not my typical style, but it might come to that.

Thanks for your help guys.
 
Discussion starter · #10 ·
can you drive a chisel between the cement and steel and bend one side in? then you just fold each side in little by little and pull it out.
Thats the route Im gonna go. Just bend and wiggle them out, without harming the Slab. I figure I will drill 1/2" holes as close to the post as I can and ease it out. (If Possible)
 
Discussion starter · #20 ·
Well today I gave her hell. There were a total of 8 post to remove. To my surprise, about 1/2" below the concrete the Railing Post was encased with concrete inside a 2 1/4" pipe. It was a nightmare. I rented the Core drill with a 3" bit. I hooked the water hose up, and had it on the slowest setting. I literally began drilling not even a 1/8" and 3 of 5 teeth on the bit broke off. Now the drill was under its own weight, I wasnt doing anything squirelly or anything stupid. So I rented the drill at 10:30am and brought it back at 11:02 am ( I was working right up the road) After I explained what happened to the owner of the store, he agreed he would "Eat" the bit. But he was going to charge me for the full day rental. We went back and forth... ( I stayed professional, never raised my voice or cursed) His arguement was well you rented it, so pay for it. My arguement is, it never worked properly, I lost a days work because "His" drill bit was faulty. and frankly it was a waste of time. Well, I payed for the days rental, literally drove across the street to my bank, and Voided and disputed the transaction. If he wants to take it further, I will have papers served, and I will take him to court.

Its not about the money, Its a Moral, or , Character issue. I rented it from him, had it for a total of 32 minutes, the bit broke within 1 minute of drilling, and He charges me for a full days rental? Come On?
 
Discussion starter · #24 ·
No, he was in the wrong. that bit was used for 1 minute, not even 1/8" of concrete was cut. the blade was defective or improperly used before I got it. I didn't get this far in life by giving in and backing down.
 
Discussion starter · #26 ·
I had a contract to rent a properly working core drill and bit. Not a contract to rent a defective bit.
 
Discussion starter · #35 ·
Diamond core drill.

I actually brought my father to the job yesterday. He's been in the Construction Field for 39 years, 20 years in the New Jersey Carpenters Union as a General Foreman, and 19 years owning and running 2 construction companies. So I figured let a guy who has done stuff like this before, try it... Well we pull up and he says to me, "Go in the bed of the truck, and get that bucket of used oil," So I get it, he pours used motor oil over the remaining 4 pipes and post. He told me to wait 15 min and watch this Sh!t, He picked up his E-Wing hammer smacked each post and pipe 1 good time, and grabbed them with a pair of channel locks and wiggled them right out. No sweat.
 
Discussion starter · #37 ·
Well it was 10W-30 used oil. He broke the creme off the top of the concrete with a masonry chisel, poured a healthy amount of oil over the chipped area, waited 15-20 min, and he took his E-Wing 28oz waffle head hammer and hit the steel post that was encased in a pipe and concrete, (1-2 good whacks) and waited. then used a pair of channel locks and wiggles them right out.

Im assuming the whacks with the hammer caused hairline cracks to let the oil seep into.
 
Discussion starter · #39 ·
Acetone, took it right off. the concrete was painted. thought about that before he did it.
 
Discussion starter · #44 ·
Well, the guy who owns the rental store called me last night. He said "Son, I apploagize for the way I acted monday, with the Core drill"... He thanked me for staying professional, and not getting upset or cursing. He said, "That took balls to walk across the street, and put a hold on the drill charge" and we talked for a few minutes... He said I accepted the hold and cancelled the charges to your account. You wont be charged for the Core Drill rental or the Bit. So in good faith, I told him to charge me for half a days rental, $35.00. He did, and next time Im up that way, Im gonna stop in and shake the mans hand.

Thats how its done, Im not gonna take something, if I feel I was treated unfairly... "You gotta stand for something, or you'll fall for anything"

There are sheep in this world, and there are Herders...
 
Discussion starter · #49 ·
Believe what you want, but he did call and appolagize.