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Posted: Sat Aug 29, 2009 9:13 am
by GB_Groundworks
does anyone know of a good technique for building spiral brick columns/pillars/posts.
Got a job to build 2, someone has already given it a go and made a reet mess 1 has fallen over already.
so the brickies wanted to know if anyone had a good technique, they say no one really does them anymore. thinking of stepping each corner out 10mm etc.
Edited By GB_Groundworks on 1251534385
Posted: Sat Aug 29, 2009 9:53 am
by seanandruby
This was covered before a couple of years ago, so should be in past posts. LLL explained it but i cant remember.
Posted: Sat Aug 29, 2009 10:10 am
by GB_Groundworks
tar for that sean
missed the bit on the search page about date found this
right spiral piers
concrete an 8 ft scaffold tube in vertically at the centre of the chimney
cut a peice of ply 450 by 450 dead square
cut a 50mm hole in the centre of the ply
place the ply over the scaff tube and use as your profile moving it approx 10mm at a time for a nice spiral effect
i will post a picture of some spiral piers i have doen recently tommorrow
from tony, photos gone though off that post
Posted: Sat Aug 29, 2009 7:13 pm
by lutonlagerlout
you answered it yourself giles!
i did one freehand years ago and it was a nightmare
so i hit upon the scaffold tube solution
works a treat and it looks unusual too,no end of folk ask me how i did it :;):
you have to make sure that the scaf tube is true and that when it is set it is perfectly plumb
the only thing i struggled with was working out how many course would equate to 1 full turn,
in the end it worked out 21 course of brickwork = a 90 deg turn with a brick being 215 mm long and 10 mm a course this makes sense
cheers LLL
Posted: Sun Aug 30, 2009 2:22 pm
by Tony McC
A dry-run would enable you to determine whether there is enough 'twist' or not at any particular rotation value