On Wednesday, June 17, 2015 at 9:02:12 PM UTC+1, dennis@home wrote:
On 17/06/2015 20:13, wrote:
On Wednesday, 17 June 2015 16:02:19 UTC+1, wrote:
After investigating various ways of building a base for a garden shed on
sloping ground I've bult a wooden frame out of treated 2x3 and plan to
drop 6 uprights into holes that will be filled with postcrete. Initially
I was going to make the uprights by cutting stub concrete posts in half
but am too concerned about the steel rebar (spalling and drilling holes)
so then decided to use treated 4x4 and accept that they will rot over
some years. Now I'm wondering about cutting strips from thick
(non-reinforced) concrete slabs and using those on end - they should be
OK to drill and there won't be significant sideloads.

Any comments?

You could cut the concrete post & epoxy the top of it. Wood I woodent, its bound to fail on you.


NT


What the OP needs is some cardboard tubes out of carpets and some ready
mix. He can dig holes, put hardcore in the bottom poor some concrete in
and when set put the tubes in and cut to the right height and then fill
with ready mix.

ghetto Sonotube, genius

http://www.sonotube.com/

With as suggested threaded stud cast into top for attachment.

Saw a motorway uderpass being constructed with a large , 3` mebbe, auger drilling holes either side of underpass, rebar frames dropped in holes and concrete poured im , provided intial piers for beams placed in just as they started digging out the underpass itself, finished with slab wall and back fill, was neat to watch over a couple of weeks.

Bit like the piling on the Newburn flats....

http://www.mirror.co.uk/news/uk-news...-three-1345473