On Sep 23, 6:37 pm, firstname.lastname@example.org (Lacustral) wrote:
I think a sledge hammer would do the trick. An you could certianly do
it for sections of wall far away from the remaining bit of wall you
want. If you want a nice clean cut, you can rent a grinder cutter and
cut your way through it. This would give you a very nice clean cut.
May be over kill though. The other way would be to chisel small chunks
off at a time. To help you you can rent a demolition hammer. These are
like smaller versions of the ones you see "roadies" use to digg cut
ashpalt roads with. They are electric powered and come in smaller
For a 3 block high wall, I think a cold chisle and hammer would
probablly do you though. Should not take too long even at small chunks
at a time.
On Sep 23, 3:37 pm, email@example.com (Lacustral) wrote:
Well, I have read the entire thread. Seems hardly anyone has actually
removed a block wall. I have, several of them.
Unless the cores have been poured or there is reinforcing embedded in
teh mortar joints, it is a simple job, not requireing power tools.
Your top course may give you problems that a few easy thumps with a
sledge hammer will take care of. After that course the rest will
probably just pick off or only require a mild tap. Mortar is not a
'glue'. Once the blocks are free, a chipping hammer will usually
remove any remaining mortar with a few taps. Try the simple way first
and you will be surprised at how minor a job it is.
The guys who buillt my house got mortar over a lot of the bricks, and
extra mortar at the edges of where it was supposed to be also.
I got loads of it off with a box cutter with the blade in sideways**
so it was a scraper. This worked better than a dedicated single-blade
razor scraper, because the blades didn't break anywhere near as often.
You're right that the extra mortar barely stuck to the bricks and the
hard part was where it was attached to more mortar, and even that part
wasn't very strong.
**There are two designs for the simple two piece, very flat box
cutter. Only one design can be used also as scrapers. You can tell
by the inner piece. It holds the razor at one end as a box cutter,
and at the other end, the two pieces of metal when viewed from the
side form a sharply pointed triangle, like a thumb and forefinger
Apparently you missed my post where I had removed 100' of six foot wall with
rebar, footers, and poured cells. The top part is usually easy, with most
of it falling over with a few slaps from a big hammer. It's just when you
get down to the bottom course when you find out if it is truly an easy job.
If you have a large footing, it gets complicated from there.
Removing a cinderblock wall of any size is no simple job. And the longer it
has been in place, the more the indication is that it was put up strong with
a lot of reinforcement.
I do hope the OP keeps us posted as to just how easy/hard it was.
Seems most folks think a sledge hammer will do.
It may. I tried a few whacks on the cinderblock walls I was tearing down.
No fun. Hard to do, chunks of concrete flying in the face, hard to get at
the stuff in the ground, created more rubble than easy-to-grab chunks,
inaccurate...just a big pain in the rump.
I rented a demolition hammer for a couple days and tore the hell out of
those walls. It's basically a small, handheld jackhammer. Plug it in, rest
the tip against the cinderblock, and pull the trigger. Once you take out a
couple blocks, you'll have the hang of it, knocking out good size chunks you
can deal with. If you end up with too-big chunks, just bust them up with
the demo hammer. You can easily get at the stuff under the ground after you
brush some of the dirt out of the way. Dig a little hole next to the block
where you want to start, so the chunk will have somewhere to go, then just
knock out one block or so at a time.
Oh, and it's fun as hell, too.
Turned out some of the cinderblock wall was 'repaired' at one time with real
concrete, high strength stuff. It was tough to take out even with the demo
hammer. Forget using a sledge on that.
Some Home Depots rent them. Last one I rented came from United Rentals. I
think it cost something like $45 a day. Sounds like a lot, that is, until
you find that using a sledge sends one too many chunks of concrete smacking
you in the forehead.
One of the contractors I had in for another job stole my sledge. I was
On 23 Sep 2007 18:37:08 -0400, firstname.lastname@example.org (Lacustral)
Use a chisel on the mortar and pry them apart. Save them if you can,
someone can always use them. Sure, a sledge hammer can do lots of
demolition, and you can work your ass off and do the job a little
faster at the expense of excessive sweating, but then you got to clean
up all the busted blocks and find a place to dispose of the junk. I'd
rather spend a little more time separating the blocks, and reusing
them, or giving them to someone else to use. It's easier to move 60
whole blocks than pails and pails of busted up junk.
Oh ya, if you are a redneck hillbilly and get really drunk. Slamming a
car into the wall is a great way to wreck the car and your
On 25 Sep 2007 09:58:28 -0400, email@example.com (Lacustral)
If that mortar or concrete is all the way thru the holes in the block,
it will be much more difficult to separate the blocks. You might want
to rent a small bulldozer or something like that. Otherwise, you just
have to keep hammering. But, that mortar might just be in the top
blocks, so try separating them first. Busted up concrete can be used
as fill for roadways or ditches if you are in a rural area, or maybe
the city or county road departments can use the stuff. On the other
hand, if you are planning to make a concrete sidewalk or driveway, you
can dump all this stuff in the bottom of the forms and save on
On Sep 23, 5:37 pm, firstname.lastname@example.org (Lacustral) wrote:
I was serious about the Mexicans. I saw 2 Mexicans take out a granite
sistern from an old farmhouse basement (back from the day people would
collect a supply of rainwater in a basement sistern). It was 6 foot
high by 2 foot thick granite rubble with cement mortar about 10 foot
by 8 foot wide. They had the whole thing down, up the stairs, and in
the dumpster in 8 hours.
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