And search for mortars - there is an answer here under Frequently Asked
Questions. Basic logic - depends on location of blocks / exposure, strength
of block etc.
Thanks for the suggestion Tom. An interesting read - but, whilst it
specified a mix where strength wouldn't be an issue - it just mentioned
that other mixes should be used where it was.
I was after a really strong mix!
from what i know there are different classes of mix in grades 1-5
for 7 newtons I have used 4 lb to 1 cement. no reason just seems
for classes of mix go to paving expert.com. I know they have a section
on mix ratios /strengths/ classes as I looked it up yesterday. Quick
search class 3 mortar mix should sort it out.
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