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Originally posted by Stonehenge
Looks like good stuff, Squizzy. The limestone looks a bit different than the stuff they quarry near me - the pictured stone looks very porous. Do you know how much it weighs per unit volume?
Pic #2 - I can always appreciate the effort that goes into building something that requires perfect alignment, and executing that design.
What kinds of footings did you have to pour to build this project? Is it a deeper footing at the piers?
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Jeff, these blocks at 500 x 350 x 240mm (19 1/2 x 14 x 9 1/2") are about 120lbs depending on how much moisture they carry and depending on the density. Thats the thing with our quarry cut stuff...it varies a lot. I was pleased with this stuff as it had a bit of colour and reasonably even density.....I wasn't pleased with the dimensional control though.
I appreciate your keen eye, thats the thing with piers...you can get 25 perfectly straight...but if the 26th is slightly out thats the one people will notice.
Poured concrete footing, 25/20 with trench mesh and 8" thick (deep)...and about 4" wider than the block both sides. Galvanised 1/2" starter bars up the middle of the piers. The footing is the same thickness (depth) at the piers only wider.
What we like to do with this stone (when the client is willing to pay) is "pillow" the blocks by round cornering the edges. This gives a very Tuscan look. If the dimension is good or we get factory diamond re-cut we can close up the mortar joins and that really improves the look.