"Nigel Molesworth" wrote in message
...
On Tue, 23 Aug 2005 18:27:29 +0000 (UTC), David Pearson wrote:

(a) coat both porous surfaces and join them together, or
(b) seal surfaces first with diluted PVA, allow to dry,
then do (a),

(b) is better, but (a) will do.

You can buy PVA in 1 or 5 litre containers at most builders merchants.


Thanks very much Nigel, and everyone else who replied.

Looks like PVA is the way to go for this job, as the
mortar is not smashed/crumbled, just split. I.e. there are no
gaps, just surfaces to join together.


Cheers,
David P.