Efflorescence on slate tiles ?

Patio flagstones (slabs), concrete flags, stone flags including yorkstone and imported flagstones.
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gripper
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Joined: Thu May 04, 2006 12:35 pm
Location: surrey

Post: # 12810Post gripper

tony,tony,tony
i am nearly finished on my patio and yesterday used lithofins 'cement away' cleaner to take the cement residue off the surface and then jet washed the whole area.
3 tiles seeem to have white deposit on the surface, is it possible for efflorescence to come up through slate ? could it be a reaction to the cleaner ? if i seal all the unaffected tiles and wait to see if the white clears is that a bad idea ? how easy is it to bury the girlfriend under a patio ? (oops just slipped out !)
thanks
gripper :cool:

Tony McC
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Post: # 12839Post Tony McC

is this really slate or is it sandstone? Some people refer to any thin flags as 'slate' without understanding that slate is a type of rock distinctly different from sandstone (or quartzite, or limestone, or whatever)

A photo would be a big help. I wouldn't expect eff with genuine slate, but it could be a by-product of the cement bedding/jointing.
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gripper
Posts: 4
Joined: Thu May 04, 2006 12:35 pm
Location: surrey

Post: # 12848Post gripper

hi tony
ah the impatience of youth (35 1/2)
having inspected further the mark is nothing more than the raised parts of the riven slate !
yes it is proper slate 30mm thick from probably welsh wales
will post photo when patio is finished not bad for £120 for 135 square foot of slate from ebay !

gripper
p.s. are there any paving jokes ?

Tony McC
Site Admin
Posts: 8346
Joined: Mon Jul 05, 2004 7:27 pm
Location: Warrington, People's Republic of South Lancashire
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Post: # 12869Post Tony McC

There's a cycle path joke and one other that slips my mind just now. Neither are worth the effort of telling, though. There's a "joke" thread in The Craic that has been running for some while now.
Site Agent - Pavingexpert

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