hi peeps i just relayed my patio on just sand but want to grout it with a cement/sand mix whats the best ratio to help stop slabs moving i know i shouldnt of cut corners but i did lol
There is no point, you layed a flexible base so the slabs will flex and the pointing will crack. Assuming you don't want to re-do it you might be best using one of the brush in type products as they are a bit crap but at least might have a slight flex to them and will be easy to remove when they fail.
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