Correct mortar mix for slate slabs - Correct mortar mix for slate slabs

Patio flagstones (slabs), concrete flags, stone flags including yorkstone and imported flagstones.
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Fintan1001
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Joined: Mon Jun 04, 2018 7:35 pm
Location: Bromley

Post: # 116984Post Fintan1001

Hi, thanks in advance for any help anyone can provide.

I'm looking to lay some slate patio slabs (25-30mm). I've looked at the advise of using a type IV mortar mix. Should I use building sand or sharp sand?
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lutonlagerlout
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Joined: Fri Aug 04, 2006 12:20 am
Location: bedfordshire

Post: # 116985Post lutonlagerlout

always sharp IE grit sand for flags or slabs
and I personally would use 5:1 with 100ml of SBR in every mix and prime the back of the slate flags
cheers LLL :)
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Tony McC
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Location: Warrington, People's Republic of South Lancashire
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Post: # 116989Post Tony McC

Just posted this link in a neighbouring thread - Laying Slate Paving
Site Agent - Pavingexpert
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