Andy Dingley wrote:
The concrete floor in my new (but old) workshop used to have baker's
ovens bolted down to it, and they've left holes. In a room 15' x 25',
there's about 6' square to fill, mostly in two large holes around 2"
deep.

So what's my best option for some sort of screed to fill these in?
Buy something (brandnames?) or mix it myself (proportions?)? What's
the best technique for getting a reasonable flat finish afterwards.

Assuming there's no damp, I'd just pva (4:1) the holes and use bags of
B&Q general purpose mortar. After an hour or so, run a length of 2" x 1"
across to get it level, and smooth with a wooden trowel.
It held up well enough in my old workshop, although I tended not to move
heavy equipment about that much.
If there are feathered edges, I'd think about a 2 part latex screed.


The finished surface will have woodworking machinery in there, so the
floor wil see "workshop" use, but I'm not going to be rolling steel-
wheeled engine cranes or such across it all too often. It will be
painted overall afterwards, but I can't afford epoxy.


I also need to trench something in to provide power feeds for a couple
of centrally located machines. Any suggestions on how best to cable
this? Trench with lid, or just bury a pipe with a drawrope and leave a
big open access box at each end?

Thanks for any suggestions