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Remove one section concrete sidewalk? snoopy_@excite.com 09-09-2006
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Posted by snoopy_@excite.com on September 9, 2006, 12:41 pm
Can anyone tell me the best method to remove one section of concrete
from a sidewalk? I have one row of 4' x 4' of concrete blocks and one
is pretty bad. I thought of patching it, but I'd rather just remove it
and repour that section. I rented a cut-off saw, but I couldn't get
the damn thing started and was so mad that I took it back the next day
for a refund. Now I am wondering if I could buy masonary blades and
use them on an old circular saw and use that, but they are only 7"
blades (depth of cut is 2 3/8"). At that depth the cut wouldn't go all
the way throught the 4" slab. Could I cut the 2 3/8" and then just use
a sledge and hope the break happens along the control joints? Is there
another method?

I've broken up concrete before with a sledge and pick-axe, but I am
afraid of trying to remove this middle section because I don't want to
repair more than just one section if I don't have to.

The cut-off saw cost me $89 ($50 for the saw and the rest for two
throwaway blades). And I'm guessing that a contractor would charge me
$300, plus they remove/recyle the concrete.

Any ideas would be appreciated.


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Posted by Paul Franklin on September 9, 2006, 2:21 pm
On 9 Sep 2006 09:41:54 -0700, "snoopy_@excite.com"

>Can anyone tell me the best method to remove one section of concrete
>from a sidewalk? I have one row of 4' x 4' of concrete blocks and one
>is pretty bad. I thought of patching it, but I'd rather just remove it
>and repour that section. I rented a cut-off saw, but I couldn't get
>the damn thing started and was so mad that I took it back the next day
>for a refund. Now I am wondering if I could buy masonary blades and
>use them on an old circular saw and use that, but they are only 7"
>blades (depth of cut is 2 3/8"). At that depth the cut wouldn't go all
>the way throught the 4" slab. Could I cut the 2 3/8" and then just use
>a sledge and hope the break happens along the control joints? Is there
>another method?
>
>I've broken up concrete before with a sledge and pick-axe, but I am
>afraid of trying to remove this middle section because I don't want to
>repair more than just one section if I don't have to.
>
>The cut-off saw cost me $89 ($50 for the saw and the rest for two
>throwaway blades). And I'm guessing that a contractor would charge me
>$300, plus they remove/recyle the concrete.
>
>Any ideas would be appreciated.

The cutoff saw is the safe way; saw all the way through and break up
the piece. Cutting halfway through makes it pretty likely it will
break on the joint, but it's not certain. Usually it just chips out on
the bottom leaving a clean line on top, but I've had it go both ways.

$300 sounds high, but around here (NE Ohio) I'd have trouble getting
someone to even do such a small job.

If you diy, you might want to drill a few holes in the edges of the
old slabs and insert short pieces of rebar that stick out into the new
slab to tie the parts together.

Keep in mind it's not going to match...

Good luck,

Paul




Posted by Joseph Meehan on September 9, 2006, 4:29 pm
Paul Franklin wrote:
> On 9 Sep 2006 09:41:54 -0700, "snoopy_@excite.com"
>
>> Can anyone tell me the best method to remove one section of concrete
>> from a sidewalk? I have one row of 4' x 4' of concrete blocks and
>> one is pretty bad. I thought of patching it, but I'd rather just
>> remove it and repour that section. I rented a cut-off saw, but I
>> couldn't get the damn thing started and was so mad that I took it
>> back the next day for a refund. Now I am wondering if I could buy
>> masonary blades and use them on an old circular saw and use that,
>> but they are only 7" blades (depth of cut is 2 3/8"). At that depth
>> the cut wouldn't go all the way throught the 4" slab. Could I cut
>> the 2 3/8" and then just use a sledge and hope the break happens
>> along the control joints? Is there another method?
>>
>> I've broken up concrete before with a sledge and pick-axe, but I am
>> afraid of trying to remove this middle section because I don't want
>> to repair more than just one section if I don't have to.
>>
>> The cut-off saw cost me $89 ($50 for the saw and the rest for two
>> throwaway blades). And I'm guessing that a contractor would charge
>> me $300, plus they remove/recyle the concrete.
>>
>> Any ideas would be appreciated.
>
> The cutoff saw is the safe way; saw all the way through and break up
> the piece. Cutting halfway through makes it pretty likely it will
> break on the joint, but it's not certain. Usually it just chips out on
> the bottom leaving a clean line on top, but I've had it go both ways.
>
> $300 sounds high, but around here (NE Ohio) I'd have trouble getting
> someone to even do such a small job.
>
> If you diy, you might want to drill a few holes in the edges of the
> old slabs and insert short pieces of rebar that stick out into the new
> slab to tie the parts together.
>
> Keep in mind it's not going to match...
>
> Good luck,
>
> Paul

I will add that not only is not going to match, but it is likely that
the rest of the walk, which is likely the same age and have been subject to
the same conditions, is likely to need replacement soon.

--
Joseph Meehan

Dia duit



Posted by hallerb@aol.com on September 9, 2006, 4:57 pm

I had a couple sections replaced over 10 years ago when the sewer
authority replaced the main in front of my home and accidently damaged
the last section of my sidewalk.

sewer folks paid for one I paid for another, it was badly cracjed they
ALL look great today. color didnt match initially but over ther years
its much less noticeable.home built in 1950...

it was well worth the little it cost at the time.

our old home had one bad section that was replaced when I was a kid
near 50 today.
just drove by there last week the entire sidewalk is fine.

so sectional replacements do work.


Posted by on September 9, 2006, 8:43 pm

>
> I had a couple sections replaced over 10 years ago when the sewer
> authority replaced the main in front of my home and accidently damaged
> the last section of my sidewalk.
>
> sewer folks paid for one I paid for another, it was badly cracjed they
> ALL look great today. color didnt match initially but over ther years
> its much less noticeable.home built in 1950...
>
> it was well worth the little it cost at the time.
>
> our old home had one bad section that was replaced when I was a kid
> near 50 today.
> just drove by there last week the entire sidewalk is fine.
>
> so sectional replacements do work.
>
On properly laid sidewalks. yes. Just driving around as they finish up
street repair season around here, and seeing how thin ,edge to edge, a lot
of the curb'n'sidewalk patches they are putting in look, not so sure about
the future. I almost never see staked steel forms any more- just hammer out
the busted parts, puddle some stiff crete in there, and trowel by eye to
match the neighboring sections. Walking around the old parts of town, the
original slabs usually look better than the patches.

aem sends...



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