The Natural Philosopher wrote:
On 30/05/2021 19:41, NY wrote:
A lot of what I see when I google "grouting/filling gaps in patio slabs"
makes it sound very easy, so there's obviously something I'm not doing
right!
if you are getting non setting crumbly **** there is not enough cement

the problem with a pre iced bag is that it may after a while not have
the mixture uniform and if you use it in small quantities you may get
all cement or no cement.

It better to buy separately for small jobs and it doesn't cost a lot more

I've been doing some of this recently, I have separate cement and sand
and I've been using a 'strong' mix of maybe 2 or 3 sand to 1 cement.
I've also been using a pretty wet sort of mix which makes it easy to
get it into the gaps, they are cement slabs so a bit of splash round
the edges doesn't matter at all. The results seem pretty solid so far
(but it has only been done for a month or so).

--
Chris Green
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