Loose patio slabs

16 Sep 2004
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United Kingdom

I have a few loose / rocking patio slabs in my garden and also on the steps leading up to the house. I suspect they are just laid on sand and the sand has sunk.

I was thinking of lifting and re-seating on a morta mix. What is the best ratio of sand and cement for sitting the slabs on and also for re-pointing the morta joints?

Also, is it just cement I need and sharp sand (or is it some other type of sand I need?)

Thank you
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er, I'd ignore the advice on that page, if I was you. The 5-spot method is doomed to failure - honest.

There's loads of posts in here on laying slabs. In brief, OP, you can use a 4-1 mix of building sand and cement for your mortar (note correct spelling!) or a 3-1-1 building sand-sharp snad-cement mix for even more stability. Just make sure what the mortar goes down onto aint gonna move either.
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The 5-spot method is doomed to failure - honest.

Yea, you're absolutely right! I read it in the wiki not so long ago, but forgot the term. Sorry, should have mentioned it to 'garrymum' :oops:.

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