| Topic: |
Religions > Atheism |
| User: |
"Elroy Willis" |
| Date: |
06 Jan 2007 06:43:59 AM |
| Object: |
OT - Any demolition experts here? |
Anybody around here have experience with jackhammers and smashing
concrete walls?
I have a concrete retaining wall that collapsed and needs to be
demolished before the new wall is put up. It's 80 feet long by 8 feet
high by 8 inches thick, and full of rebar, and lying flat in my
driveway.
A crew came out yesterday trying to smash it up with hand-held
jackhammers and only took six feet of it out in six hours. What's the
next step up from jackhammers and before dynamite?
--
Elroy Willis
www.elroysemporium.com
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| User: "Pastor Kutchie, ordained atheist minister" |
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| Title: Re: OT - Any demolition experts here? |
06 Jan 2007 12:32:06 PM |
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Elroy Willis wrote:
Anybody around here have experience with jackhammers and smashing
concrete walls?
I have a concrete retaining wall that collapsed and needs to be
demolished before the new wall is put up. It's 80 feet long by 8 feet
high by 8 inches thick, and full of rebar, and lying flat in my
driveway.
A crew came out yesterday trying to smash it up with hand-held
jackhammers and only took six feet of it out in six hours. What's the
next step up from jackhammers and before dynamite?
Specialist concrete breaking drills e.g. Kangos.
--
Elroy Willis
www.elroysemporium.com
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| User: "Father Haskell" |
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| Title: Re: OT - Any demolition experts here? |
09 Jan 2007 10:16:15 PM |
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Elroy Willis wrote:
Anybody around here have experience with jackhammers and smashing
concrete walls?
I have a concrete retaining wall that collapsed and needs to be
demolished before the new wall is put up. It's 80 feet long by 8 feet
high by 8 inches thick, and full of rebar, and lying flat in my
driveway.
A crew came out yesterday trying to smash it up with hand-held
jackhammers and only took six feet of it out in six hours. What's the
next step up from jackhammers and before dynamite?
Oxygen torches for the rebar.
Concrete can be broken up with only a drill and expanding
concrete made just for the purpose. One example is:
http://demolitiontechnologies.com.
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| User: "droth" |
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| Title: Re: OT - Any demolition experts here? |
07 Jan 2007 09:31:03 PM |
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I grew up on a farm, and have had to break up foundations and concrete
bldg floors on several occasions. I've also had to do some concrete
demo when working in construction years ago. I think the best solution
would be hiring or renting a proper backhoe with a jackhammer
attachment, but barring that, this is what I'd basically do:
1. Rent a concrete cutter, I'd probably get a pretty big gas powered
one. Either way, they're pretty dusty to use and annoyingly loud.
Looking online, concrete has a weight of around 2500 kg/m3. That would
make your wall about 30,000 kg. I'd try to cut a 16x8 foot piece first,
and see if you can lever up the slab, if not, try an 8x8, if so, make
the next slab at 24x8 and see.
2. Get a bunch of junk fence posts, or lengths of log, and two or three
longish, pretty sturdy posts for levers. If you have a loader, I'd try
one or two railway ties for the levers.
3. Lever up one side, and toss fence posts, logs etc under to raise the
slab off the ground. If you have a small front end loader (something
like a Case 580, or even a Bobcat), I'd use it to press the levers
instead of doing it by hand.
4. Start sledging or jackhammering the raised piece. You'll be
surprised how much more easily it breaks up when it's raised up.
Someone who's decent with a sledgehammer should be able to break up a
8x8 ft chunk in under a half an hour, assuming you just need the pieces
small enough to lever into a loader bucket.
5. As the sledging is happening, use either a cutting torch to cut the
rebar joining the pieces or use a grinder, but that would mean you'll
either be going through a lot of grinding wheels, and/or you would have
to open up your breaks more. Either way, the torch would be alot
quicker, and getting at the rebar with a grinder is sometimes a big
pain, and kind of dangerous because of binding, or the pieces pinching a
hand if they collapse down.
Not sure what you're planning on using as a disposal vehicle, but if you
have to load it by hand, you'll have to break them up into pretty small
pieces. If you can load it with the loader, they can be pretty big, and
just use fence posts to help lever them into the bucket.
Anyhow, probably a professional who has done a lot of this wouldn't care
for the way I'm suggesting, but I've done enough of it that this is how
I'd do it. Basically, getting the slab raised is the important thing.
They break up a hundred times easier when they're not flat on the
ground. I've found sledges to be quicker than jackhammers, but the crew
you have may not do as well. Shards of concrete can go flying when
sledging, so be careful. I got six stitches in my hand once.
Also, are they using pointed bits on the jackhammers, or wider, shovel
shaped ones? I haven't done too much jackhammering, but the bit you use
makes all the difference. My guess would be that a 1 or 1 1/2 inch
chisel shaped one would be the best.
Anyhow, that's my semi-skilled opinion.
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| User: "Elroy Willis" |
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| Title: Re: OT - Any demolition experts here? |
09 Jan 2007 07:22:03 PM |
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droth <drothNinE@5h4w.c4> wrote in alt.atheism
I grew up on a farm, and have had to break up foundations and concrete
bldg floors on several occasions. I've also had to do some concrete
demo when working in construction years ago. I think the best solution
would be hiring or renting a proper backhoe with a jackhammer
attachment, but barring that, this is what I'd basically do:
The crew showed up this morning with a Bobcat with a hydraulic
jackhammer attachment and it smashed right through the wall with no
problem. Didn't damage the driveway underneath either. They got it
all cleaned up and taken away for $500.
People can say what they want about Mexicans, but I've found them to
be hard workers for a good price and they did a nice job. The next
cheapest estimate was $2000 for the cleanup.
Also, are they using pointed bits on the jackhammers, or wider, shovel
shaped ones? I haven't done too much jackhammering, but the bit you use
makes all the difference. My guess would be that a 1 or 1 1/2 inch
chisel shaped one would be the best.
The one on the Bobcat looked like at least two inches, and was shaped
like a chisel.
Anyhow, that's my semi-skilled opinion.
Thanks for the info. Now I'm entering reconstruction mode. My
neighbor thinks those interlocking pavestone blocks will work and that
he and I can put the wall back up without having to hire anybody, but
I've never done anything like that before.
--
Elroy Willis
www.elroysemporium.com
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| User: "Robibnikoff" |
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| Title: Re: OT - Any demolition experts here? |
10 Jan 2007 09:25:52 AM |
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"Elroy Willis" <elroywillis@swbell.net> wrote in message
news:03f8q2t4n53rk9bmnnot5gm1oh5no19qv6@4ax.com...
droth <drothNinE@5h4w.c4> wrote in alt.atheism
I grew up on a farm, and have had to break up foundations and concrete
bldg floors on several occasions. I've also had to do some concrete
demo when working in construction years ago. I think the best solution
would be hiring or renting a proper backhoe with a jackhammer
attachment, but barring that, this is what I'd basically do:
The crew showed up this morning with a Bobcat with a hydraulic
jackhammer attachment and it smashed right through the wall with no
problem. Didn't damage the driveway underneath either. They got it
all cleaned up and taken away for $500.
People can say what they want about Mexicans, but I've found them to
be hard workers for a good price and they did a nice job. The next
cheapest estimate was $2000 for the cleanup.
Also, are they using pointed bits on the jackhammers, or wider, shovel
shaped ones? I haven't done too much jackhammering, but the bit you use
makes all the difference. My guess would be that a 1 or 1 1/2 inch
chisel shaped one would be the best.
The one on the Bobcat looked like at least two inches, and was shaped
like a chisel.
Anyhow, that's my semi-skilled opinion.
Thanks for the info. Now I'm entering reconstruction mode. My
neighbor thinks those interlocking pavestone blocks will work and that
he and I can put the wall back up without having to hire anybody, but
I've never done anything like that before.
A lot of the mansions in the towns by where I live use those. VERY pricey!
But, they're also not being installed by the rich snobs that live there
either ;)
--
Robyn
Resident Witchypoo
BAAWA Knight!
#1557
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| User: "John Popelish" |
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| Title: Re: OT - Any demolition experts here? |
09 Jan 2007 08:54:29 PM |
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Elroy Willis wrote:
Thanks for the info. Now I'm entering reconstruction mode. My
neighbor thinks those interlocking pavestone blocks will work and that
he and I can put the wall back up without having to hire anybody, but
I've never done anything like that before.
Just keep in mind that an earthen bank is not made of solid,
but of a very viscous fluid. A retaining wall will not be
stable, unless it is stable holding back a fluid.
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| User: "Elroy Willis" |
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| Title: Re: OT - Any demolition experts here? |
09 Jan 2007 09:14:48 PM |
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John Popelish <jpopelish@rica.net> wrote in alt.atheism
Elroy Willis wrote:
Thanks for the info. Now I'm entering reconstruction mode. My
neighbor thinks those interlocking pavestone blocks will work and that
he and I can put the wall back up without having to hire anybody, but
I've never done anything like that before.
Just keep in mind that an earthen bank is not made of solid,
but of a very viscous fluid. A retaining wall will not be
stable, unless it is stable holding back a fluid.
That's the thing I'm concerned about. The previous wall fell over
because of the hydrostatic pressure behind it after a big rainfall.
The people who put it up before I lived here didn't put in any
weepholes at all. It was just a giant slab of concrete with no way
to drain the pressure behind it, and it ended up falling over like a
domino.
From what I understand, even if the interlocking block wall fails at
some point, it's gonna be a lot easier to fix than what just happened
to me. Since the blocks aren't cemented together, water can flow
through them unlike it couldn't with the solid cement wall.
--
Elroy Willis
www.elroysemporium.com
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| User: "Robibnikoff" |
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| Title: Re: OT - Any demolition experts here? |
10 Jan 2007 09:26:54 AM |
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"Elroy Willis" <elroywillis@swbell.net> wrote in message
news:pml8q2504en0juvc083jedgvu3e026g19t@4ax.com...
John Popelish <jpopelish@rica.net> wrote in alt.atheism
Elroy Willis wrote:
Thanks for the info. Now I'm entering reconstruction mode. My
neighbor thinks those interlocking pavestone blocks will work and that
he and I can put the wall back up without having to hire anybody, but
I've never done anything like that before.
Just keep in mind that an earthen bank is not made of solid,
but of a very viscous fluid. A retaining wall will not be
stable, unless it is stable holding back a fluid.
That's the thing I'm concerned about. The previous wall fell over
because of the hydrostatic pressure behind it after a big rainfall.
My old pediatrician was killed that way. Was doing some gardening next to a
brick wall - It fell on him and crushed his skull :(
--
Robyn
Resident Witchypoo
BAAWA Knight!
#1557
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| User: "Elroy Willis" |
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| Title: Re: OT - Any demolition experts here? |
10 Jan 2007 02:36:43 PM |
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Robibnikoff <witchypoo@broomstick.com> wrote in alt.atheism
Elroy Willis <elroywillis@swbell.net> wrote in message
John Popelish <jpopelish@rica.net> wrote in alt.atheism
Elroy Willis wrote:
Thanks for the info. Now I'm entering reconstruction mode. My
neighbor thinks those interlocking pavestone blocks will work and that
he and I can put the wall back up without having to hire anybody, but
I've never done anything like that before.
Just keep in mind that an earthen bank is not made of solid,
but of a very viscous fluid. A retaining wall will not be
stable, unless it is stable holding back a fluid.
That's the thing I'm concerned about. The previous wall fell over
because of the hydrostatic pressure behind it after a big rainfall.
My old pediatrician was killed that way. Was doing some gardening
next to a brick wall - It fell on him and crushed his skull :(
Bummer. I sometimes park my car out next to the wall that collapsed
to wash it, or if I'm working in the garage, and if it'd been there
it'd been smashed up real bad.
What sucks is that my homeowner's insurance isn't paying for any of
the fixup on the wall. They claim it was faulty construction and not
really part of the house anyway, so I've gotta pay for it myself.
I've lived here 10 years and never put in a single claim, you'd think
they could help me out a little, but no...
--
Elroy Willis
www.elroysemporium.com
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| User: "Robibnikoff" |
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| Title: Re: OT - Any demolition experts here? |
10 Jan 2007 03:37:42 PM |
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"Elroy Willis" <elroywillis@swbell.net> wrote in message
news:d5jaq2lk8j7i2pvmrkcbjh0or4vuurv4u3@4ax.com...
Robibnikoff <witchypoo@broomstick.com> wrote in alt.atheism
Elroy Willis <elroywillis@swbell.net> wrote in message
John Popelish <jpopelish@rica.net> wrote in alt.atheism
Elroy Willis wrote:
Thanks for the info. Now I'm entering reconstruction mode. My
neighbor thinks those interlocking pavestone blocks will work and that
he and I can put the wall back up without having to hire anybody, but
I've never done anything like that before.
Just keep in mind that an earthen bank is not made of solid,
but of a very viscous fluid. A retaining wall will not be
stable, unless it is stable holding back a fluid.
That's the thing I'm concerned about. The previous wall fell over
because of the hydrostatic pressure behind it after a big rainfall.
My old pediatrician was killed that way. Was doing some gardening
next to a brick wall - It fell on him and crushed his skull :(
Bummer. I sometimes park my car out next to the wall that collapsed
to wash it, or if I'm working in the garage, and if it'd been there
it'd been smashed up real bad.
Yikes! Good thing it wasn't your car wasn't there at the time :P
What sucks is that my homeowner's insurance isn't paying for any of
the fixup on the wall. They claim it was faulty construction and not
really part of the house anyway, so I've gotta pay for it myself.
I've lived here 10 years and never put in a single claim, you'd think
they could help me out a little, but no...
Did they give you the "And if you make another claim for any reason, even if
your house burns to the ground due to arson, we'll drop you" speech? I got
that after I made a claim when the boiler when and the house almost burned
down. What a racket! :P
--
Robyn
Resident Witchypoo
BAAWA Knight!
#1557
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| User: "John Popelish" |
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| Title: Re: OT - Any demolition experts here? |
09 Jan 2007 10:06:49 PM |
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Elroy Willis wrote:
John Popelish <jpopelish@rica.net> wrote in alt.atheism
Elroy Willis wrote:
Thanks for the info. Now I'm entering reconstruction mode. My
neighbor thinks those interlocking pavestone blocks will work and that
he and I can put the wall back up without having to hire anybody, but
I've never done anything like that before.
Just keep in mind that an earthen bank is not made of solid,
but of a very viscous fluid. A retaining wall will not be
stable, unless it is stable holding back a fluid.
That's the thing I'm concerned about. The previous wall fell over
because of the hydrostatic pressure behind it after a big rainfall.
The people who put it up before I lived here didn't put in any
weepholes at all. It was just a giant slab of concrete with no way
to drain the pressure behind it, and it ended up falling over like a
domino.
From what I understand, even if the interlocking block wall fails at
some point, it's gonna be a lot easier to fix than what just happened
to me. Since the blocks aren't cemented together, water can flow
through them unlike it couldn't with the solid cement wall.
Either you extend anchors way back into the bank, to slow
the fall to an acceptable speed with the dead weight of the
bank, itself, or you lean the wall back on the bank, so that
the weight of the wall holds the fluid pressure of the earth
in balance. Interlocking blocks generally are designed to
form a leaning wall. Unfortunately, even a leaning, flat
wall isn't stable, unless it is also rigid, because the
fluid pressure is greater lower on the wall, so if it is
flexible (like the interlocking blocks) even if it leans
enough to not fall over, it can fail by bulging in the
middle and folding, lengthwise. The most efficient form is
a wall is thicker at the bottom and that leans more at the
base and becomes more vertical at the top. In other words
one that resembles Hoover dam.
Another important aspect you might need to consider is the
ratcheting effect of frost heave on such a structure.
Rain doesn't make earth fluid, it just lowers the viscosity,
temporarily and dramatically. Sometimes the fluid problem
(especially with fat clays) is solved by removing the earth
behind the wall, about as far back as the wall is high, and
filling the space with rock, with just a bit of earth on
top. Rocks don't flow in less than geologic time.
Effectively, the wall becomes as thick as the rock fill layer.
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| User: "William Wingstedt" |
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| Title: Re: OT - Any demolition experts here? |
09 Jan 2007 09:36:36 PM |
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On Tue, 09 Jan 2007 21:54:29 -0500, John Popelish <jpopelish@rica.net>
wrote:
Elroy Willis wrote:
Thanks for the info. Now I'm entering reconstruction mode. My
neighbor thinks those interlocking pavestone blocks will work and that
he and I can put the wall back up without having to hire anybody, but
I've never done anything like that before.
Just keep in mind that an earthen bank is not made of solid,
but of a very viscous fluid. A retaining wall will not be
stable, unless it is stable holding back a fluid.
Right. And be sure to provide a system to provide for drainage. Water
will move a wall that is in its way if you don't provide a route for
it to get around the wall. I'm sure you can google "retaining wall" as
well as I can...I need to put in about 90 feet of drain tile myself to
get my roof drainage away from the house...have fun!
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| User: "Don Martin" |
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| Title: Re: OT - Any demolition experts here? |
11 Jan 2007 10:19:40 PM |
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On Wed, 10 Jan 2007 01:22:03 GMT, Elroy Willis
<elroywillis@swbell.net> wrote:
<snip>
Glad to see you got rid of it without havine to sell the house.
Thanks for the info. Now I'm entering reconstruction mode. My
neighbor thinks those interlocking pavestone blocks will work and that
he and I can put the wall back up without having to hire anybody, but
I've never done anything like that before.
Neither, I suspect, had the guy who built the wall that collapsed.
Consulltation with a structural engineer might be worth while at the
planning stage: you might very well be able to build the thing
yourself--that is a whole lot of digging and stacking--but designing
it so it will stay there is another matter entirely.
Through a jaundiced eye darkly--rheum with a view.
The Squeeky Wheel
http://home.comcast.net/~drdonmartin/
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| User: "" |
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| Title: Re: OT - Any demolition experts here? |
06 Jan 2007 10:10:54 AM |
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In <jt5vp21e1g9ob1tpb5jcc9jtj1eogebodp@4ax.com>, on 01/06/07
at 06:43 AM, Elroy Willis <elroywillis@swbell.net> said:
Anybody around here have experience with jackhammers and smashing
concrete walls?
I have a concrete retaining wall that collapsed and needs to be
demolished before the new wall is put up. It's 80 feet long by 8 feet
high by 8 inches thick, and full of rebar, and lying flat in my driveway.
A crew came out yesterday trying to smash it up with hand-held
jackhammers and only took six feet of it out in six hours. What's the
next step up from jackhammers and before dynamite?
C-4?
Get a crew that knows what they are doing. They should have, at a minimum,
Jackhammers [automotive engine driven 6" busting blade minimum], cutting
torch [s], & two trucks to tote with.
Sounds like you have someone working by the hour,
walksalone, who suspects someone thinks Elroy has deep pockets.
Against my will, in the course of my travels, the belief that everything
worth knowing was known at Cambridge gradually wore off. In this respect
my travels were very useful to me. Bertrand Russell philosopher,
mathematician, author, Nobel laureate (1872-1970)
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| User: "Elroy Willis" |
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| Title: Re: OT - Any demolition experts here? |
07 Jan 2007 07:26:45 AM |
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walksalone wrote in alt.atheism
at 06:43 AM, Elroy Willis <elroywillis@swbell.net> said:
Anybody around here have experience with jackhammers and smashing
concrete walls?
I have a concrete retaining wall that collapsed and needs to be
demolished before the new wall is put up. It's 80 feet long by 8 feet
high by 8 inches thick, and full of rebar, and lying flat in my driveway.
A crew came out yesterday trying to smash it up with hand-held
jackhammers and only took six feet of it out in six hours. What's the
next step up from jackhammers and before dynamite?
C-4?
Get a crew that knows what they are doing. They should have, at a minimum,
Jackhammers [automotive engine driven 6" busting blade minimum], cutting
torch [s], & two trucks to tote with.
Sounds like you have someone working by the hour,
Actually it was a flat bid, and they're probably gonna lose money
on it. All the other bids were at least twice as much.
--
Elroy Willis
www.elroysemporium.com
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| User: "quibbler" |
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| Title: Re: OT - Any demolition experts here? |
06 Jan 2007 08:06:03 PM |
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In article <jt5vp21e1g9ob1tpb5jcc9jtj1eogebodp@4ax.com>,
elroywillis@swbell.net says...
What's the
next step up from jackhammers and before dynamite?
You could try the "low tech" approach that people have used for
millennia. Instead of demolishing it, either cover it over and re-pave,
or dig a trench nearby and push it in. You'll still need some equipment,
to move sections and all. Ideally, jacks, rollers and a winch would do
it. In theory, these same jacks and winches could stand the wall back up
(probably in sections) and then you could re-buttress it. I know it's
the lazy man's way, but it's worked many times in the past.
--
Quibbler (quibbler247atyahoo.com)
"It is fashionable to wax apocalyptic about the
threat to humanity posed by the AIDS virus, 'mad cow'
disease, and many others, but I think a case can be
made that faith is one of the world's great evils,
comparable to the smallpox virus but harder to
eradicate." -- Richard Dawkins
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| User: "Don Martin" |
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| Title: Re: OT - Any demolition experts here? |
06 Jan 2007 07:51:36 AM |
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On Sat, 06 Jan 2007 06:43:59 -0600, Elroy Willis
<elroywillis@swbell.net> wrote:
Anybody around here have experience with jackhammers and smashing
concrete walls?
I have a concrete retaining wall that collapsed and needs to be
demolished before the new wall is put up. It's 80 feet long by 8 feet
high by 8 inches thick, and full of rebar, and lying flat in my
driveway.
A crew came out yesterday trying to smash it up with hand-held
jackhammers and only took six feet of it out in six hours. What's the
next step up from jackhammers and before dynamite?
I have seen large jackhammers attached to backhoe-type machines that
have considerably more force than hand-held (and may cost more to rent
than a crew of guys with hand-held ones). A possibility is to get the
crew back to cut the slab into segments that can be lifted by crane
into dumptrucks.
Is the slab flat? Retaining walls are typically built with bulkheads
at right angles extending into the earth to be retained to prevent
collapse (or at least reduce the possibility).
I do not envy you your problem.
Through a jaundiced eye darkly--rheum with a view.
The Squeeky Wheel
http://home.comcast.net/~drdonmartin/
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| User: "Elroy Willis" |
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| Title: Re: OT - Any demolition experts here? |
06 Jan 2007 09:47:46 AM |
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Don Martin <drdonmartin@comcast.net> wrote in alt.atheism
Elroy Willis <elroywillis@swbell.net> wrote:
Anybody around here have experience with jackhammers and smashing
concrete walls?
I have a concrete retaining wall that collapsed and needs to be
demolished before the new wall is put up. It's 80 feet long by 8 feet
high by 8 inches thick, and full of rebar, and lying flat in my
driveway.
A crew came out yesterday trying to smash it up with hand-held
jackhammers and only took six feet of it out in six hours. What's the
next step up from jackhammers and before dynamite?
I have seen large jackhammers attached to backhoe-type machines that
have considerably more force than hand-held (and may cost more to rent
than a crew of guys with hand-held ones).
One of them mentioned a jackhammer attachment to a Bobcat tractor
that has a lot more power than the hand-held jackhammers, but I worry
about it cracking my driveway as it hammers away at the fallen wall.
A possibility is to get the crew back to cut the slab into segments that
can be lifted by crane into dumptrucks.
I thought maybe drilling holes into it and driving flanged spikes into
it to crack it up might work, but I don't know how long it would take
to drill a one-inch hole through an eight-inch concrete wall with a
masonry bit.
Is the slab flat?
Yes, it's lying flat as a pancake on the driveway.
Retaining walls are typically built with bulkheads at right angles extending
into the earth to be retained to prevent collapse (or at least reduce the possibility).
It's completely unconnected from the earth behind it at this point.
I do not envy you your problem.
Me either.
--
Elroy Willis
www.elroysemporium.com
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| User: "duke" |
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| Title: Re: OT - Any demolition experts here? |
08 Jan 2007 05:33:34 AM |
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On Sat, 06 Jan 2007 06:43:59 -0600, Elroy Willis <elroywillis@swbell.net> wrote:
Anybody around here have experience with jackhammers and smashing
concrete walls?
I have a concrete retaining wall that collapsed and needs to be
demolished before the new wall is put up. It's 80 feet long by 8 feet
high by 8 inches thick, and full of rebar, and lying flat in my
driveway.
A crew came out yesterday trying to smash it up with hand-held
jackhammers and only took six feet of it out in six hours. What's the
next step up from jackhammers and before dynamite?
Short of asking God for a miracle, it looks like sweat and lots of $.
duke, American-American
*****
"The Mass is the most perfect form of Prayer."
Pope Paul VI
*****
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| User: "MarkA" |
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| Title: Re: OT - Any demolition experts here? |
06 Jan 2007 09:45:06 PM |
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On Sat, 06 Jan 2007 06:43:59 -0600, Elroy Willis wrote:
Anybody around here have experience with jackhammers and smashing concrete
walls?
I have a concrete retaining wall that collapsed and needs to be demolished
before the new wall is put up. It's 80 feet long by 8 feet high by 8
inches thick, and full of rebar, and lying flat in my driveway.
A crew came out yesterday trying to smash it up with hand-held jackhammers
and only took six feet of it out in six hours. What's the next step up
from jackhammers and before dynamite?
Tell the Department of Homeland Security that it is a Weapon of Mass
Destruction. They will no doubt come and take it away for you.
--
MarkA
(this space accidentally filled in)
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| User: "Mike Painter" |
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| Title: Re: OT - Any demolition experts here? |
07 Jan 2007 02:58:50 AM |
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I have a concrete retaining wall that collapsed and needs to be
demolished before the new wall is put up. It's 80 feet long by 8
feet high by 8 inches thick, and full of rebar, and lying flat in my
driveway.
A crew came out yesterday trying to smash it up with hand-held
jackhammers and only took six feet of it out in six hours. What's
the next step up from jackhammers and before dynamite?
Heavy equipment and something to cut the rebar.
Jack hammer sections the equipment can lift and cut the rebar with a torch
or a hydraulic rebar cutter.
Blasting even if you can get a permit will be very dangerous, expensive and
you may still have to cut a lot of rebar.
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| User: "Don Martin" |
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| Title: Re: OT - Any demolition experts here? |
06 Jan 2007 10:11:01 PM |
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On Sat, 06 Jan 2007 22:45:06 -0500, MarkA <toor@nowhere.com> wrote:
On Sat, 06 Jan 2007 06:43:59 -0600, Elroy Willis wrote:
Anybody around here have experience with jackhammers and smashing concrete
walls?
I have a concrete retaining wall that collapsed and needs to be demolished
before the new wall is put up. It's 80 feet long by 8 feet high by 8
inches thick, and full of rebar, and lying flat in my driveway.
A crew came out yesterday trying to smash it up with hand-held jackhammers
and only took six feet of it out in six hours. What's the next step up
from jackhammers and before dynamite?
Tell the Department of Homeland Security that it is a Weapon of Mass
Destruction. They will no doubt come and take it away for you.
Brilliant idea! There is a risk those sorry bastards will put him
under arrest for having such a big one, but still it's worth a shot.
Through a jaundiced eye darkly--rheum with a view.
The Squeeky Wheel
http://home.comcast.net/~drdonmartin/
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