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lutonlagerlout
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Post: # 71893Post lutonlagerlout

busy last week ,have done 6 ramps recently for the council but will get pics when the railings go up
went to see this chimney last friday
Image
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so under engineers advice knocked half of it down saved the bricks and rebuilt it in lime mortar
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12 metres up
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ground all the joints out and grouted helical bars in
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then repointed with easipoint historical lime mortar (sigh if only all mortar was a nice to use)Image
the jenny wheel was a life saver getting stuff up but it is surprising how hard it is to pull a bucket of muck up 12 M
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went back yesterday and finished the pot s but no camera
cheers LLL :)




Edited By lutonlagerlout on 1324807879
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Pablo
Posts: 1990
Joined: Sun Mar 25, 2007 10:49 pm
Location: N/Ireland

Post: # 71916Post Pablo

tidy chimney there tony that mortar looks great. What can cause a chimney to split like that out of interest.
Can't see it from my house

lutonlagerlout
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Post: # 71917Post lutonlagerlout

IMO water ingress and heat from chimney fires
plus the chimney had a design detail which was flawed as it wasnt tied in
its done ok as it was built in 1901, but also it had no pots on for some weird reason
but water is the big baddie plus someone had repointed it with strong cement mortar which stops water evaporating
hopefully it will last another 110 years :;):
LLL
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dig dug dan
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Location: hemel hempstead,herts. 01442 212315

Post: # 71919Post dig dug dan

nice job tony. out of interest, what does scaffolding cost for a job like that? looks like you could adjust the height yourself at the top
Dan the Crusher Man
01442 212315
www.crusherhire.co.uk
"a satisfied customer? we should have them stuffed!"

lutonlagerlout
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Post: # 71920Post lutonlagerlout

£1100 +vat
the cracks were originally spotted by flue men who were using a 20M genie boom.dunno who much they cost to hire
LLL :)
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mike builder/landscaper
Posts: 155
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Location: north yorkshire

Post: # 71922Post mike builder/landscaper

big north/south defide there tony. i rebuilt a chimney last week and the scaffold was only 150 quid.
m.atkinson

dig dug dan
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Post: # 71923Post dig dug dan

£1100 +vat
the cracks were originally spotted by flue men who were using a 20M genie boom.dunno who much they cost to hire
LLL :)


how many days were you there tony?
I hired a genie Boom (great bits of kit) for a weeks job at a school, £330 for the week + transport(£30 each way) plus vat
no need to lug anything up with a genie wheel, plus you have a power supply built into the cage!
Dan the Crusher Man
01442 212315
www.crusherhire.co.uk
"a satisfied customer? we should have them stuffed!"

lutonlagerlout
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Post: # 71928Post lutonlagerlout

I didnt want to do a full shot of the house as its a very distinctive 2 million quid gaff, and it would give it away straight off
I have had chimneys scaffolded for £400 on a pair of semis type of house
but this house is 3 storey plus rooms in the loft and they had to build a tower then use trusses to cantilever it
the client had another quote of £2k +£100 a week rent
our scaff has never charged us rent yet
we couldnt have done the work we did from a boom
taking 200 bricks off and cleaning them is not something i would try from a cherry picker
plus all the ancillary stuff
client is over the moon,we are paid ,scaffolder is paid
nice job just before xmas
LLL :)
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lutonlagerlout
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Post: # 71929Post lutonlagerlout

5 days with 2 men and a lad dan
how long was the boom you hired?
i could see them being very handy on certain jobs
LLL ???
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dig dug dan
Posts: 2504
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Location: hemel hempstead,herts. 01442 212315

Post: # 71930Post dig dug dan

how long was the boom you hired?
i could see them being very handy on certain jobs


it was a 15.7m one. we were cutting conifers and trimming back the sides on a tennis court at a school. really great bit of kit, and hardly used any diesel.
I can see with your job, scaff was better as you could get all round the chimney easily




Edited By dig dug dan on 1325022962
Dan the Crusher Man
01442 212315
www.crusherhire.co.uk
"a satisfied customer? we should have them stuffed!"

rab1
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Location: scotland

Post: # 71933Post rab1

Dan, thats a baby boom (cherry picker), hire the big ones and sh1t yourself. :p
God loves a tryer

dodger41
Posts: 12
Joined: Thu Dec 29, 2011 10:00 pm
Location: hampshire

Post: # 71956Post dodger41

lutonlagerlout wrote:I didnt want to do a full shot of the house as its a very distinctive 2 million quid gaff, and it would give it away straight off
I have had chimneys scaffolded for £400 on a pair of semis type of house
but this house is 3 storey plus rooms in the loft and they had to build a tower then use trusses to cantilever it
the client had another quote of £2k +£100 a week rent
our scaff has never charged us rent yet
we couldnt have done the work we did from a boom
taking 200 bricks off and cleaning them is not something i would try from a cherry picker
plus all the ancillary stuff
client is over the moon,we are paid ,scaffolder is paid
nice job just before xmas
LLL :)
Nice work on the chimneys mate !, did you use lime mortar to re-build them, then rake-out and re-point later ??, whats the lime mortar like to use, compared to normal muck ??, cheers !.

lutonlagerlout
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Post: # 71958Post lutonlagerlout

the bit that was rebuilt we used 4 sand:1 cement : 1lime
we then raked it all out and repointed with easipoints historic lime mortar which contains no cement at all
the idea being that any damp can evaporate rather than be trapped in
it is really nice to work with
took 2 days to go off and just lovely to use

btw welcome to the brewcabin dodger
LLL :)
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Brucieboy
Posts: 162
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Location: Essex

Post: # 71959Post Brucieboy

Dogder - apologies if you already know this, but following on from LLL's advice, don't just use hydrated lime (available at most builders merchants) and sand - it will never go off. It must be mixed with a cementitious material, most commonly cement. Easipoint Historic mortar uses ggbs (ground granulated blastfurnace slag) in combination with hydrated lime (as well as pigments to achieve various colours). ggbs is a cement replacement material (white in colour) used at most ready mixed concrete plants throughout the UK to replace a proportion of the ordinary Portland cement (CEMI). The plants that don't stock ggbs, use pfa (pulverised fuel ash, aka fly ash).

If your going to use lime mortar (it's been around for about 10,000 years), use hydrated lime with cement or alternatively use the proprietary materials such Easipoint Historic. A lime that can be used on its own is with sand is natural hydraulic lime. This is available at some builders merchants under the name NHL 2.0, 3.5, 5.0 etc (the number stands for it's compressive strength). The real traditional lime mortar is made with lime putty (supplied in tubs) and sharp sand. It has to be "knocked up" by hand into a soft dough-like consistency - usually in the volume proportions 3 sharp sand (sometimes 2) to 1 of lime putty.

Lime mortar with no cement is excellent to use for the right job (normally restoration) and in the right conditions - as LLL says it can take some time to go off. It relies on carbon dioxide from the atmosphere to convert the lime back to it's original calcium carbonate form.

Lime mortar was used to build most houses etc right up until late Victorian times when Portand cement first became an economic alternative. Cement:sand mortar or cement:lime(hydrated):sand mortar is now the norm because it goes off much quicker - as demanded by our fast track construction requirements.

If in doubt, check it out first before use.
Retired DIY'er

lutonlagerlout
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Post: # 71960Post lutonlagerlout

couldnt have put it better myself brucie
i have done some heritage work with the hydraulic lime mortar and you have to cover the work with damp hessian for weeks on end in the summer,plus the heritage types love using a really coarse sand. almost like grit sand
i like doing a bit of weatherstruck and even birds beak when the notion takes me ,but have you ever tried tuck pointing?
LLL :)
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