To avoid these ads, REGISTER NOW!

Concrete Filled Steel Post

klean63

Well-known member
Joined
Jun 21, 2009
Messages
95
Location
Orange, CA
I have a post in my garage, it's 3" diameter x 3/16 wall x 26" tall and filled with concrete, it's off to the side of the garage but it's in the way of some storage i'm planning. I'm not really sure of the best way to remove it.

1st thought was to put a metal cutting wheel on my makita, cut around the diameter of it then change to a concrete cutting wheel to cut thru the concrete. The problem with that method is the post is about 2" away from a wall so I wouldn't be able to get around it all the way.

2nd option was to use a reciprocating saw but it can't get close enough to the ground.

I guess my question would be, will the metal cutting wheel cut thru the concrete? I know it's likely going to eat up a a few cutting wheels but if it'll get thru i'd have no problem buying a few to get it done.
 
To avoid these ads, REGISTER NOW!

1steve

Well-known member
Joined
Mar 28, 2011
Messages
275
Location
Tennessee
Torch around bottom, sledge hammer to break concrete then grind whats left. Or long blade for reciprocating saw and use floor as guide with slight bow to blade. Only cutting pipe then break off with sledge.
 

dumper

Well-known member
Joined
Oct 22, 2006
Messages
673
Location
Oregon
cutting wheel around as much of the circumference as possible, wiggle top of pole left and right, and forward, concrete should easily fracture and last bit of pipe should fatigue . At least it sounds good in theory.
 
OP
K

klean63

Well-known member
Joined
Jun 21, 2009
Messages
95
Location
Orange, CA
What's it there for? Must be protecting something.

It's in the single car stall of a 3 car garage. The original purpose was to protect the area where the water heater and forced air are from being run into if you were parking a car there. With the cabinets along the same wall and the way i've set up the garage there's no way a car is gonna park there.

Torch around bottom, sledge hammer to break concrete then grind whats left. Or long blade for reciprocating saw and use floor as guide with slight bow to blade. Only cutting pipe then break off with sledge.

Thanks, this may work if I can find a long enough blade.
 
OP
K

klean63

Well-known member
Joined
Jun 21, 2009
Messages
95
Location
Orange, CA

DSC_0078.jpg


DSC_0079.jpg
 

Farres

Well-known member
Joined
Dec 20, 2011
Messages
50
I think I'd use a hand grinder to get through the steel, as close to the floor as possible. Once you're through, the concrete should break easily. A few smacks with a sledge hammer on the remaining stump of concrete and grind the steel down. Rinse and repeat until it's a clean edge at floor level. I think a torch would be my last choice, though I guess you could scarf it that way.
 

srmofo

Well-known member
Joined
Oct 15, 2009
Messages
6,161
Location
SW ohio
use an abrasive cutting wheel on the grinder. Just dont flex it. Once you are through the steel just break the concrete with a sledge. Switch to a grinding disc and take the steel down flush to the floor. Switch to a diamond cutting stone and grind the the concrete down flush
 

Jrican

Well-known member
Joined
Oct 29, 2012
Messages
141
Location
Lincoln, Nebraska
Metal disk 1.5 to 3 inch from base as best you can, then stick a breaker with a wide chisel to break up concrete at that level. also you can probably break through the last few inches of metal with the the breaker. Then put sharp point bit on breaker and break up concrete in center of post down below the level of the floor vacuuming out the debris as you go. After that you can go back with your metal disk and cut off even at the floor, and fill in with new concrete.
 

Garage5.9

Well-known member
Joined
Jan 26, 2011
Messages
2,508
Location
Maui,Hawaii
You peaked my curiosity at the least, I googled, and failed. Please educate me/us on what a 'target saw' is.


This is what is referred to as a target saw , doesn't have to be a husqvarna but anything similar will do. They make various blades for cutting different materials , asphalt , masonry , rail road track etc. Target saw is a brand but most people in construction refer to these saws as target saws. well most people here do anyway


media.nl
 

Jrican

Well-known member
Joined
Oct 29, 2012
Messages
141
Location
Lincoln, Nebraska
We call them concrete saws, Hilti makes something very similar. I would question the blades durability/longevity in this situation, but I've never tried. But I'm thinking trough the post not around it. Around it would still require a breaker.
 

DIC

Well-known member
Joined
Aug 2, 2009
Messages
698
I'd leave it and weld a receiver hitch on it. It would make a good grinder or vice stand
 
To avoid these ads, REGISTER NOW!

djjsr

Well-known member
Joined
Sep 4, 2006
Messages
4,796
Location
In the cornfields
As mentioned earlier, cut the pipe with a torch and hit it with a sledge hammer. It will break off. It's easier than you may think (if you know how to use a cutting torch).

I had eight filled pipes that were 8" diameter. I was dreading the job. Turned out to be much easier than I thought.
 

DaleK

Well-known member
Joined
May 31, 2010
Messages
766
Location
East-Central Ontario
How long has it been there? If it's more than about 10 years, hit it with a sledgehammer and it might just break right off (rusted out at the bottom)
 

matouse3

Well-known member
Joined
Feb 19, 2012
Messages
289
Location
Mid-Michigan
When we put these in my father's business, there was rebar running through the center of the post and into the slab. Maybe not in your case as its a residential application, but the sledge hammer trick might night be as easy as suggested.
 

Steevo

Well-known member
Joined
Aug 18, 2009
Messages
8,738
Location
43.49600, -112.04300
Check before you whack it off.
I don't recall whether it is Calif. Plumbing Code, or Building Code, but one of them requires a bollard protection for any WH or HVAC unit installed in a space where moving vehicles can be. If the house was built after the code was adopted, you could end up having to replace it when you go to sell.
 

KMinAF

Well-known member
Joined
Mar 5, 2011
Messages
698
Location
Fairview Utah
Let me throw this out there, what if you cut the concrete around the base of the bollard and worked it loose like an old fence post? This assumes of course that it isn't buried six feet deep.
 
OP
K

klean63

Well-known member
Joined
Jun 21, 2009
Messages
95
Location
Orange, CA
use an abrasive cutting wheel on the grinder. Just dont flex it. Once you are through the steel just break the concrete with a sledge. Switch to a grinding disc and take the steel down flush to the floor. Switch to a diamond cutting stone and grind the the concrete down flush

I'm going to give this a shot this weekend, i'll report back:thumbup:

I'd recommend either 2-3 full sticks of dynamite or possibly some thermite. Either of those should make quick work of your pole.

If the above method doesn't work I may try this:eek::D

How long has it been there? If it's more than about 10 years, hit it with a sledgehammer and it might just break right off (rusted out at the bottom)

The entire 20 years we've been here. We bought the house new so I know it hasn't had a lot of water exposure.

:+1:You may find its code to be there as well.

Check before you whack it off.
I don't recall whether it is Calif. Plumbing Code, or Building Code, but one of them requires a bollard protection for any WH or HVAC unit installed in a space where moving vehicles can be. If the house was built after the code was adopted, you could end up having to replace it when you go to sell.

Thats what I thought, but not every house in the neighborhood has it and they were all built at the same time.
 

lakee911

Well-known member
Joined
Sep 8, 2012
Messages
53
Location
Columbus, OH
Typically these are broken by cutting the steel post and a sharp whack with a sledge will break the concrete off clean at the cut. I wouldn't be surprised if a snap cutter did it all in one step.

Most likely, the code requires the bollard to be there.
 

kbs2244

Well-known member
Joined
Nov 11, 2006
Messages
14,065
Was the original floor poured around it?
Or was it installed later.
If later you should be able remove the patching concrete then wiggle it back and forth and pull it up.
 

thightower

Well-known member
Joined
Jun 4, 2011
Messages
497
Location
oklahoma
After you get the pipe cut. The concrete should break with the help of a 16lb sledge. My philosophy, if it don't move get a bigger hammer.
 

nataliaR

New member
Joined
Nov 9, 2013
Messages
1
We have the same damn post in our garage. It 'protects' washing machine area. I want to buy a front loading washing machine or bigger top loader but this post prevents us from installing front loader or washing machine bigger then 27X27 inches.
I was wondering if you was able to remove your post and how did you do it.
Thank you
 

coffeebean

Active member
Joined
Jan 24, 2008
Messages
37
Location
SoCal
use the rotary saw with a diamond blade. get the one with the water attachment or you will cover your entire work area with concrete dust. make sure to clean the saw while the slurry is still wet or you will have to disassemble the entire saw to get it clean.

if you don't get the water attachment make sure you use respiratory protection. i heard concrete stuff is bad stuff.
dave
 

Cougar67

Well-known member
Joined
Nov 19, 2009
Messages
868
Location
Virginia
Check before you whack it off.
I don't recall whether it is Calif. Plumbing Code, or Building Code, but one of them requires a bollard protection for any WH or HVAC unit installed in a space where moving vehicles can be. If the house was built after the code was adopted, you could end up having to replace it when you go to sell.

I was about to say the same thing. It looks like there's a gas water heater in that closet. If so the post should stay.
 
To avoid these ads, REGISTER NOW!
Top Bottom