On Sun, 25 Sep 2005 19:21:40 +0000 (UTC), "David Pearson"
wrote:

G'day.

There are various holes that I need to fix. One of them
is in my knowledge.

Hole Number 1 is in a concrete-block wall. I can see
how to start filling it up with blocks and mortar, starting
from the bottom. But how do I fill the final gap at the top?
When I push the block (or chopped-down block) into
this final hole, will this not just push the mortar through
into the cavity? Maybe it is easy, but I have not done
this or anything like it before.

Hole Number 2 is... brick-shaped and -sized, where
I pulled a lintel out of the wall. (Definitely safe in this
case, in case you are worried about me...). But I guess
the answer to Number 1 will also apply here?

Thanks very much,
D Pearson.


Answer for hole 1 - say a window sized hole
I do this in stages, I build the wall neer the top, say 1 brick away,
and let be for a day. THis stops it all moving as you mess arround in
the next step.
Next put in a final row of blocks, with a ridge of mortar at the back,
the ridge does not have to be neet, let it be a day
finally push mortar tight into the last bit of gap, the bits of ridge
of mortar you left will stop the stuff pushing straight through.

Answer for hole 2 = use final 2 steps for hole 1.

Finally I reckon a pro will do this differently.

Rick