"N. Thornton" wrote:
"Jerry Built" wrote...
Some other people wrote about pointing and what to mix to use:
juts bang in hydrated line instead of portland and slap it in.
And hope it doesn't rain for a couple of months. Hydraulic lime might
be a better bet

Just use 1:1:6, or even approach 1:2:9.

1:1:6 is very common, but has been widely criticised by the experts,

No it has not. See below.


since the lime content causes thr cement to not checmically set
properly, and the cement clogs the pores preventing the lime going off
properly as well. The result is regular failures. But its still
commonly used. I expect it'll take another 10 years for the knowledge
to permeate.

Erm, NT, I think you've become confused. This is doing people a
big dis-service. There is nothing wrong with 1:1:6. For a brief
and easy-to-understand look at the subject, please see:

http://www.buildingconservation.com/...ent/cement.htm
http://www.bricksandbrass.co.uk/diymats/lime/lime.htm

Please note carefully that above I said "approach 1:2:9".

A LOT of mis-information has recently been spouted by those with vested
interests in the lime production/use fields. 1:1:6 has been around for
a long time - about 150 years.


J.B.