On Tue, 14 Feb 2006 08:48:56 -0000 TheScullster wrote :
Yes, now you mention them, the term breeze blocks is familiar - pretty
sure that's what I'm dealing with.
How can I use 2.8 N/mm2 for these, if the actual capacity is a lot
less?

Basically by reference to BS5628: the net allowable stress will be a
function of the block material (as above), thickness, mortar, bearing
type and assumed standard of workmanship. 0.7N/mm2 should be a safe
conservative figure for 100mm blocks.

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