Concrete cutting

[Pufter]

Anyone know about concrete cutting?

We have a garage sitting on a concrete slab about 6 inches thick at th
bottom of our garden. The slab goes beyond the footprint of the garag
to the side to form a pathway upto the boundary of the fence with th
neighbours, & this leads onto common land behind the garage. Anyway
the slab effectively creates a water barrier which means the garde
frequently gets flooded (the ground round here is heavy clay), as i
can't run off onto common land behind. Unfortunately, drainage was no
considered when this was built. This doesn't sound like a DI
proposition, but the ideal solution would be to cut a channel throug
the concrete pathway a couple of inches wide to allow water backing u
to flow through it & away. Anyone know of a firm who could do such
job & approximate cost? (West Mdlands)


--
Pufter

[John Rumm]

Post by Pufter
Anyone know about concrete cutting?
We have a garage sitting on a concrete slab about 6 inches thick at the
bottom of our garden. The slab goes beyond the footprint of the garage
to the side to form a pathway upto the boundary of the fence with the
neighbours, & this leads onto common land behind the garage. Anyway,
the slab effectively creates a water barrier which means the garden
frequently gets flooded (the ground round here is heavy clay), as it
can't run off onto common land behind. Unfortunately, drainage was not
considered when this was built. This doesn't sound like a DIY
proposition, but the ideal solution would be to cut a channel through

It doesn't? Sounds like the canonical uk.d-i-y answer may be appropriate
here - angle grinder (or more exactly, hire a slightly more hefty stone
saw for the day). Mark out, cut slots, break out the fillet, rinse and
repeat if not all the way through.

Alternatively you could cut a wider slot and sit some drainage channel
into it.
--
Cheers,

John.

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[The Medway Handyman]

Post by Pufter
Anyone know about concrete cutting?
We have a garage sitting on a concrete slab about 6 inches thick at
the bottom of our garden. The slab goes beyond the footprint of the
garage to the side to form a pathway upto the boundary of the fence
with the neighbours, & this leads onto common land behind the garage.
Anyway, the slab effectively creates a water barrier which means the
garden frequently gets flooded (the ground round here is heavy clay),
as it can't run off onto common land behind. Unfortunately, drainage
was not considered when this was built. This doesn't sound like a DIY
proposition, but the ideal solution would be to cut a channel through
the concrete pathway a couple of inches wide to allow water backing up
to flow through it & away. Anyone know of a firm who could do such a
job & approximate cost? (West Mdlands).

Easy enough to DIY. Hire a 'cut kwik'
http://www.brandontoolhire.co.uk/directory/prodView.asp?idproduct=144 Around
£30 a day.

Cut 2 slits 6" apart, break out the middle section, concrete in a length of
plastic downpipe.

Robert is your fathers brother.

[Unbeliever]

Post by Pufter
Anyone know about concrete cutting?
We have a garage sitting on a concrete slab about 6 inches thick at
the bottom of our garden. The slab goes beyond the footprint of the
garage to the side to form a pathway upto the boundary of the fence
with the neighbours, & this leads onto common land behind the garage.
Anyway, the slab effectively creates a water barrier which means the
garden frequently gets flooded (the ground round here is heavy clay),
as it can't run off onto common land behind. Unfortunately, drainage
was not considered when this was built. This doesn't sound like a DIY
proposition, but the ideal solution would be to cut a channel through
the concrete pathway a couple of inches wide to allow water backing up
to flow through it & away. Anyone know of a firm who could do such a
job & approximate cost? (West Mdlands).

For a change - the best tool that you can use is an angle grinder to cut a
few grooves in the concrete and remove the waste between the grooves with a
Kango hammer or even a hammer and cold chisel,

If you still want to spend the cash, contacy a small builder (or sole
trader) to do this simple job.

[george [dicegeorge]]

Post by Unbeliever

Post by Pufter
Anyone know about concrete cutting?
We have a garage sitting on a concrete slab about 6 inches thick at
the bottom of our garden. The slab goes beyond the footprint of the
garage to the side to form a pathway upto the boundary of the fence
with the neighbours, & this leads onto common land behind the garage.
Anyway, the slab effectively creates a water barrier which means the
garden frequently gets flooded (the ground round here is heavy clay),
as it can't run off onto common land behind. Unfortunately, drainage
was not considered when this was built. This doesn't sound like a DIY
proposition, but the ideal solution would be to cut a channel through
the concrete pathway a couple of inches wide to allow water backing up
to flow through it & away. Anyone know of a firm who could do such a
job & approximate cost? (West Mdlands).

For a change - the best tool that you can use is an angle grinder to cut a
few grooves in the concrete and remove the waste between the grooves with a
Kango hammer or even a hammer and cold chisel,
If you still want to spend the cash, contacy a small builder (or sole
trader) to do this simple job.

Dont cut a sharp sided channel or you may get your foot stuck in it or trip,
cut a wide shallow angled groove
using the anglegrinder,
and sweep the mud out every few weeks with a broom.

Start with a smallish groove,
test it with water,
and adjust it as needed.

[g]

[The Natural Philosopher]

Post by Unbeliever
For a change - the best tool that you can use is an angle grinder to
cut a few grooves in the concrete and remove the waste between the
grooves with a Kango hammer or even a hammer and cold chisel,

Bollocks it is. The best tool short of TNT is a concrete saw.


Easily hired.

[Unbeliever]

Post by The Natural Philosopher

Post by Unbeliever
For a change - the best tool that you can use is an angle grinder to
cut a few grooves in the concrete and remove the waste between the
grooves with a Kango hammer or even a hammer and cold chisel,

Bollocks it is. The best tool short of TNT is a concrete saw.
Easily hired.

"Bollocks" really are a bit soft for the job in hand though! ;-)

As for the "concrete saw", does that actually produce a cut a "couple of
inches wide in one go?

If not (and it doesn't), then an angle grinder with a diamond blade will do
the job nicely - and if that is already at hand, then why pay the cost of
hiring?

I will accept though that if there is a large amount of concrete to be cut,
then the correct "type" of concrete cutting saw may well be the better
option - but these seem to be more generally used by the various road
mending gangs that frequent the various highways and byways of the country.

[The Natural Philosopher]

Post by Unbeliever

Post by The Natural Philosopher

Post by Unbeliever
For a change - the best tool that you can use is an angle grinder to
cut a few grooves in the concrete and remove the waste between the
grooves with a Kango hammer or even a hammer and cold chisel,

Bollocks it is. The best tool short of TNT is a concrete saw.
Easily hired.

"Bollocks" really are a bit soft for the job in hand though! ;-)
As for the "concrete saw", does that actually produce a cut a "couple of
inches wide in one go?

no, in two goes.

Post by Unbeliever
If not (and it doesn't), then an angle grinder with a diamond blade will do
the job nicely - and if that is already at hand, then why pay the cost of
hiring?
I will accept though that if there is a large amount of concrete to be cut,
then the correct "type" of concrete cutting saw may well be the better
option - but these seem to be more generally used by the various road
mending gangs that frequent the various highways and byways of the country.

[Bruce]

On Tue, 2 Feb 2010 16:26:04 +0000, Pufter

Post by Pufter
Anyone know about concrete cutting?
We have a garage sitting on a concrete slab about 6 inches thick at the
bottom of our garden. The slab goes beyond the footprint of the garage
to the side to form a pathway upto the boundary of the fence with the
neighbours, & this leads onto common land behind the garage. Anyway,
the slab effectively creates a water barrier which means the garden
frequently gets flooded (the ground round here is heavy clay), as it
can't run off onto common land behind. Unfortunately, drainage was not
considered when this was built. This doesn't sound like a DIY
proposition, but the ideal solution would be to cut a channel through
the concrete pathway a couple of inches wide to allow water backing up
to flow through it & away. Anyone know of a firm who could do such a
job & approximate cost? (West Mdlands).

Before you go ahead, consider where the water will go once you have
cut a channel. There is a risk that any significant flow of water
will wash away the ground underneath the concrete path, undermining
the path and possibly the foundations of the garage.

You should consider cutting a channel and installing a slot drain
which will need to be connected to your drainage system. This will
collect the water from the path and take it safely to the drains
without risking damage to your garage:

http://www.pavingexpert.com/drain06.htm

[george [dicegeorge]]

Post by Bruce
Before you go ahead, consider where the water will go once you have
cut a channel. There is a risk that any significant flow of water
will wash away the ground underneath the concrete path, undermining
the path and possibly the foundations of the garage.

oh, thats a thought, i'd better concrete that hole in my concrete path
that water's been seeping down for a few months!

thanks

[g]