The Brew Cabin

Posted: **Wed Aug 24, 2016 1:47 pm**

Hi guys
I used sharp sand last time on the lower parts of the garden, now about to do the final area but can see that some are using Concrete dust 5mill down as a bedding
Would this be better on a domestic patio with a 6 to 1 mix than the sharp sand
I will need to slightly raise the bedding for the fall im thinking this would allow an extra 10mill or so over that sand from its strength

Posted: **Wed Aug 24, 2016 2:43 pm**

Unless you use lots of plasticiser it makes a horrible unworkable mix.

Use the sharp sand again but if your bedding will be more than 60mm throw in some 10mm stone

Posted: **Wed Aug 24, 2016 9:22 pm**

Thanks sharp sand it will be
I also have got some flat block walls to get done can I use sharp sand or do I have to get building sand for this

Posted: **Fri Aug 26, 2016 10:58 am**

Get building sand, trying to lay blocks with a sharp sand mortar will break your heart.

If its very rough block on the flat then you might get away with it but it makes a very poor mortar with very bad workability compared to building sand.

Posted: **Fri Aug 26, 2016 4:30 pm**

Well it came down to two choices
A building sand which is the grittiest in this area or a fine plastering sand ,I went to three merchants to look at their sand so I guess this is the best I can do and it will have to do the patio and the wall
Thanks all

The Brew Cabin

Concrete dust as bedding