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Posted: Thu Nov 13, 2008 5:32 pm
by lutonlagerlout
got a demo job to do inside an old 1920s garage which the client want to keep
inside there is a bomb shelter 3 m by 4 m by 2.2 m high with 330mm brick walls and a 250mm in situ concrete raft on top,it is humongous and very strong looking
i have taken stuff like this down before when the access was good ,but its not good here ,only a 900 gap from the top of the concrete to the underside of the ridge
i have priced it as 3 men for 5 days to demo ,but any tips gratefully accepted
(and dont say get someone else to do it,and no a machine cannot get to it)
cheers 3000 post LLL :;):
Edited By lutonlagerlout on 1226597595
Posted: Thu Nov 13, 2008 5:44 pm
by Tommy
I was going to suggest dropping a bomb on it, but that sort of defeats the object.
Posted: Thu Nov 13, 2008 6:15 pm
by flowjoe
LLL
There is some pretty nifty saw/cutting gear on the market, even if you have to hire a company in and you dispose.
Did i see something on this forum about a chemical/compound you pour into predrilled holes and it expands and breaks the concrete/reinforcing, looked good stuff but don`t spill any on the drive :;):
Posted: Thu Nov 13, 2008 6:53 pm
by Dave_L
Sounds like a job for a JCB hydraulic breaker and a lot of hard graft Tony. Can't see any other sensible way around it.
Posted: Thu Nov 13, 2008 7:12 pm
by dig dug dan
tony, try this stuff. its great!
sylentmite
Posted: Thu Nov 13, 2008 7:33 pm
by flowjoe
Thats the stuff i meant, nearly as destructive as japanese knotweed
Posted: Thu Nov 13, 2008 10:57 pm
by GB_Groundworks
can you not get a micro in with a small hammer(pecker), not much better than a sledge but after a day at it it'll be easier on the body.
if not just get the lads on it and supervise haha
Posted: Fri Nov 14, 2008 6:25 pm
by Tommy
Another suggestion is to hire one of them huge demo machines with a 3 piece boom, park it at the front and go up and over.
That said, I wouldnt want to be on the recieving end of the hire bill
Posted: Sun Nov 16, 2008 7:06 am
by seanandruby
put a crash deck so that the lads standing on it are at a comfortable working height for jack hammers. work your way in breaking as you go. remember rotation on the hammers for the men. Or....www.diamondhiresales.co.uk/products/hydraulic-chainsaws - we had a wire concrete cutter on our job because of vibration. any of the core drill companies can fill you in on it. it was expensive tho at 500 quid a metre.
Posted: Sun Nov 16, 2008 9:12 am
by Dave_L
Cor! Some interesting stuff there Sean!
Floor Saw!
and that concrete chainsaw!
Concrete Chainsaw
Bet none of them are cheap to hire & run, but the work you can produce with minimal overcut would be good, saving on making good etc
Posted: Sun Nov 16, 2008 11:09 am
by seanandruby
wire sawing for concrete is a good way to. it is a long diamond tipped wire fixed by a seies of pulleys and cuts through concret even 3 metres thick. takes time and money but works great.
Posted: Wed Nov 19, 2008 5:55 am
by seanandruby
???
Posted: Thu Nov 20, 2008 12:25 am
by lutonlagerlout
got it down,2 blokes 4 days in 30 minute shifts
thank heaven for lime mortar
LLL