Reply With QuoteA good tile adhesive will do it. Make sure both surfaces are dry grease free etc.
That’s what I’ve done in the past and they haven’t come loose yet.
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A couple of days power washing the paving and patio has managed to loosen off a few paving stones.
I've lifted them up and cleaned the surface of the tiles.
In an ideal world Id be removing the old mortar bed underneath these and laying new mortar.
I'm looking for a quicker fix however and wondering if anyone has had any joy using the adhesives.
I'll be repointing after it's done with brush in jointing mortar.
Any recommendations?
A good tile adhesive will do it. Make sure both surfaces are dry grease free etc.
That’s what I’ve done in the past and they haven’t come loose yet.
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If you’ve got to repoint them,I think it’s worth knocking the old cement off and resetting them.
I’ve never heard of an adhesive unless you mean tile adhesive,and then you still need to knock the cement off.
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If it is cement on them then PVA works well to rebond them.
Nothing left on the underside of paving stone-it is clean now .
Didn't think a PVA would be strong enough or flexible.
Was wondering about coating underside with PVA and then something like a tile adhesive.Originally Posted by Andyp1973
I have had this before on coping stones and noticed a couple of slabs loose just a couple of days so. So long as the bed is solid and they have just come loose I'm going mix cement and sbr together to a smooth slurry and trowel the back of the slab snd mortar bed and put them back. It's dries as hard as anything and sticks like the proverbial.
I saw that one suggested
Is SBR like a waterproof PVA?
Cheers
Yes, exactly that. Don't bother with pva as it dissolves with moisture, sbr is what you want to mix with the cement.
Gripfill.
No more nails adhesive?
Maybe cut a ‘key’ into the bed with an angle grinder prior to relaying
Thanks for replies everyone.
I went with the SBR mixed with a quickset mortar.
Quite easy to get it into a good consistency slurry.
SBR is about £28 for 5 litre tub.
Was surprised to see the price of PVA now too. Expensive stuff.
PITA job of digging out old pointing and replacing that next.
1 job always leads to another!
How did you get on with the sbr and cement slurry?
If you have an angle grinder get a masonry disc, run it down one side of the pointing and then the other, hammer out the peak that is left, if the pointing has not collapsed, with a screwdriver or small chisel.
Thanks Speedy
Got down on the knees and chiselled out the worst of it and new dry jointing stuff in
JuanKing the SBR and mortar worked well-seems really solid.
Will use that method again.
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