Probably different costs to here in Australia, but what would the
cheapest stuff to use for concrete aggregate for non important garden
shed floor? In grandfathers day they used to use some sort of ash (fly
ash?)or was it crushed slag/

FMurtz wrote

Probably different costs to here in Australia, but what would the cheapest
stuff to use for concrete aggregate for non important garden shed floor?
In grandfathers day they used to use some sort of ash (fly ash?)or was it
crushed slag/

Not sure you can get that anymore.

You sure you want to mix it by hand instead of getting a minimix truck load
?

And in some ways you need a decent strength concrete
for a shed floor so you get a decent long lived surface
unless you want to put old carpet on it like some do.

On Sun, 10 Nov 2019 02:07:51 +1100, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

And in some ways you need a decent strength concrete

What you need is to go back to bed, you abnormal, trolling, senile cretin!
02:07 in Australia, yet again!!!!! tsk

--
addressing nym-shifting senile Rodent:
"You on the other hand are a heavyweight bull****ter who demonstrates
your particular prowess at it every day."
MID:

Rod Speed wrote:
FMurtz wrote

Probably different costs to here in Australia, but what would the
cheapest stuff to use for concrete aggregate for non important garden
shed floor? In grandfathers day they used to use some sort of ash (fly
ash?)or was it crushed slag/

Not sure you can get that anymore.

You sure you want to mix it by hand instead of getting a minimix truck
load ?

And in some ways you need a decent strength concrete
for a shed floor so you get a decent long lived surface
unless you want to put old carpet on it like some do.
I have two cement mixers and plenty of time.

"FMurtz" wrote in message
...
Rod Speed wrote:
FMurtz wrote

Probably different costs to here in Australia, but what would the
cheapest stuff to use for concrete aggregate for non important garden
shed floor? In grandfathers day they used to use some sort of ash (fly
ash?)or was it crushed slag/

Not sure you can get that anymore.

You sure you want to mix it by hand instead of getting a minimix truck
load ?

And in some ways you need a decent strength concrete
for a shed floor so you get a decent long lived surface
unless you want to put old carpet on it like some do.

I have two cement mixers and plenty of time.

Sure, but its quite a bit of work even just for a shed floor.

On Mon, 11 Nov 2019 03:40:33 +1100, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:

FLUSH troll****

03:40 in Australia? I suppose your collegue from Australia is still in bed
and fast asleep, you abnormal trolling senile pest. So you will still have
to wait for a few hours until you get a reply, you miserable lonely
cantankerous senile troll!

--
Kerr-Mudd,John addressing senile Rot:
"Auto-contradictor Rod is back! (in the KF)"
MID:

Rod Speed wrote:


"FMurtz" wrote in message
...
Rod Speed wrote:
FMurtz wrote

Probably different costs to here in Australia, but what would the
cheapest stuff to use for concrete aggregate for non important
garden shed floor? In grandfathers day they used to use some sort of
ash (fly ash?)or was it crushed slag/

Not sure you can get that anymore.

You sure you want to mix it by hand instead of getting a minimix
truck load ?

And in some ways you need a decent strength concrete
for a shed floor so you get a decent long lived surface
unless you want to put old carpet on it like some do.

I have two cement mixers and plenty of time.

Sure, but its quite a bit of work even just for a shed floor.
But probably cheaper than paving stones etc.

"FMurtz" wrote in message
...
Rod Speed wrote:


"FMurtz" wrote in message
...
Rod Speed wrote:
FMurtz wrote

Probably different costs to here in Australia, but what would the
cheapest stuff to use for concrete aggregate for non important garden
shed floor? In grandfathers day they used to use some sort of ash (fly
ash?)or was it crushed slag/

Not sure you can get that anymore.

You sure you want to mix it by hand instead of getting a minimix truck
load ?

And in some ways you need a decent strength concrete
for a shed floor so you get a decent long lived surface
unless you want to put old carpet on it like some do.

I have two cement mixers and plenty of time.

Sure, but its quite a bit of work even just for a shed floor.

But probably cheaper than paving stones etc.

But a lot easier to get a minimix load and a lot better
quality of concrete that wont spall or crumble in use.

On 11/11/2019 01:00, FMurtz wrote:
Rod Speed wrote:


"FMurtz" wrote in message
...
Rod Speed wrote:
FMurtz wrote

Probably different costs to here in Australia, but what would the
cheapest stuff to use for concrete aggregate for non important
garden shed floor? In grandfathers day they used to use some sort
of ash (fly ash?)or was it crushed slag/

Not sure you can get that anymore.

You sure you want to mix it by hand instead of getting a minimix
truck load ?

And in some ways you need a decent strength concrete
for a shed floor so you get a decent long lived surface
unless you want to put old carpet on it like some do.

I have two cement mixers and plenty of time.

Sure, but its quite a bit of work even just for a shed floor.
But probably cheaper than paving stones etc.

I bit the bullet and bought my ballast in 25kg bags.

It was all really the same cost as paving slabs, but at least I didnt
have to move more than the bags of cement and ballast. And getting it
level was easier


If you have access getting tonne bags of ballast delivered is probably
near as good as it gets.


--
Gun Control: The law that ensures that only criminals have guns.

On Sun, 10 Nov 2019 01:53:58 +1100, FMurtz wrote:

Probably different costs to here in Australia, but what would the
cheapest stuff to use for concrete aggregate for non important garden
shed floor? In grandfathers day they used to use some sort of ash (fly
ash?)or was it crushed slag/

Most of the UK has sand and gravel quarries fairly close, so ballast (a
mixture of sand and gravel) is as cheap as anything else.

Possibly false economy, but then again I think you have more coal fired
power stations than we do.

Fly ash is very fine (not like an aggregate). I assume that you need the
lumps for strength.

I remember it being packed down beside a concrete gully under a dual
carriageway because it was very light and could be compacted to exert very
little side pressure on the concrete.

Also at one time proposed for spreading on marine oil spills to clump up
the oil.

As far as I know modern power stations grind the coal up very fine to make
it burn more efficiently so you probably don't get slag any more.

Cheers



Dave R

--
AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64

Dave R wrote-

Most of the UK has sand and gravel quarries fairly close, so ballast (aÂ*
mixture of sand and gravel) is as cheap as anything else.Â*

Possibly false economy, but then again I think you have more coal firedÂ*
power stations than we do.Â*

Fly ash is very fine (not like an aggregate). I assume that you need theÂ*
lumps for strength.Â*

I remember it being packed down beside a concrete gully under a dualÂ*
carriageway because it was very light and could be compacted to exert veryÂ*
little side pressure on the concrete.Â*

Also at one time proposed for spreading on marine oil spills to clump upÂ*
the oil.Â*

As far as I know modern power stations grind the coal up very fine to makeÂ*
it burn more efficiently so you probably don't get slag any more.Â*

CheersÂ*

Very few pulverized fuel (ground coal) fired stations now running in the UK due to being sacrificed on the altar of greentardery. Those that were best for concrete quality pulverized fuel ash or PFA (eggborough, Fiddlers Ferry, West Burton, Ironbridge and Longannet) required at least 3 days under baseload for the combustion to settle down and yield low carbon clean pale ash which could be used as a Pozzolan in the mix. Some of the ash particles in the flame would clump together and fuse then fall to the bottom of the furnace. This was Furnce Bottom Ash or FBA colloquially known as Clinker. Used in Breeze blocks and roads.
Adding pozzolan to concrete had many technical advantages. Thousands of tons were included in the Thames barrier and motorway bridges in the South West where alkali silicate reaction in mixes using local aggregate caused failure (concrete cancer).

Cynic Wrote in message:
Dave R wrote-

Most of the UK has sand and gravel quarries fairly close, so ballast (a
mixture of sand and gravel) is as cheap as anything else.

Possibly false economy, but then again I think you have more coal fired
power stations than we do.

Fly ash is very fine (not like an aggregate). I assume that you need the
lumps for strength.

I remember it being packed down beside a concrete gully under a dual
carriageway because it was very light and could be compacted to exert very
little side pressure on the concrete.

Also at one time proposed for spreading on marine oil spills to clump up
the oil.

As far as I know modern power stations grind the coal up very fine to make
it burn more efficiently so you probably don't get slag any more.

Cheers

Very few pulverized fuel (ground coal) fired stations now running in the UK due to being sacrificed on the altar of greentardery. Those that were best for concrete quality pulverized fuel ash or PFA (eggborough, Fiddlers Ferry, West Burton, Ironbridge and Longannet) required at least 3 days under baseload for the combustion to settle down and yield low carbon clean pale ash which could be used as a Pozzolan in the mix. Some of the ash particles in the flame would clump together and fuse then fall to the bottom of the furnace. This was Furnce Bottom Ash or FBA colloquially known as Clinker. Used in Breeze blocks and roads.
Adding pozzolan to concrete had many technical advantages. Thousands of tons were included in the Thames barrier and motorway bridges in the South West where alkali silicate reaction in mixes using local aggregate caused failure (concrete cancer).


PFA is an example of "a" pozzolan.....others exist...
--
Jimk


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http://usenet.sinaapp.com/

A local clay quarry has a housing estate built over it and it was filled by
that black klinker slag stuff then concreted over. I note its starting to
sink now after 50 years.. Oops.
Brian

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Note this Signature is meaningless.!
"David" wrote in message
...
On Sun, 10 Nov 2019 01:53:58 +1100, FMurtz wrote:

Probably different costs to here in Australia, but what would the
cheapest stuff to use for concrete aggregate for non important garden
shed floor? In grandfathers day they used to use some sort of ash (fly
ash?)or was it crushed slag/

Most of the UK has sand and gravel quarries fairly close, so ballast (a
mixture of sand and gravel) is as cheap as anything else.

Possibly false economy, but then again I think you have more coal fired
power stations than we do.

Fly ash is very fine (not like an aggregate). I assume that you need the
lumps for strength.

I remember it being packed down beside a concrete gully under a dual
carriageway because it was very light and could be compacted to exert very
little side pressure on the concrete.

Also at one time proposed for spreading on marine oil spills to clump up
the oil.

As far as I know modern power stations grind the coal up very fine to make
it burn more efficiently so you probably don't get slag any more.

Cheers



Dave R

--
AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64

On Saturday, 9 November 2019 14:54:04 UTC, FMurtz wrote:
Probably different costs to here in Australia, but what would the
cheapest stuff to use for concrete aggregate for non important garden
shed floor? In grandfathers day they used to use some sort of ash (fly
ash?)or was it crushed slag/

Plastic pallets are free here, and don't rot. As for cheapest agg, just ask your suppliers.


NT

wrote:
On Saturday, 9 November 2019 14:54:04 UTC, FMurtz wrote:
Probably different costs to here in Australia, but what would the
cheapest stuff to use for concrete aggregate for non important garden
shed floor? In grandfathers day they used to use some sort of ash (fly
ash?)or was it crushed slag/

Plastic pallets are free here, and don't rot. As for cheapest agg, just ask your suppliers.


NT

Used them for one shed but a nuisance if not filled with ballast.