Posted: Mon Jun 15, 2020 10:56 pm
I am in process of re-laying a patio (see separate thread on problem with trader).
Before that a patio had been in place for around 10 years.
And before that it was concreted for 20 years.
So the patio is a rectangle section that goes away from my house and then there is a path which is 90cm wide and 8m long.
The rectangle bit has type 1 on it already and I have leveled it off
With the path what I wanted to do was lower the level. This has meant I have already dug down past the MOT Type 1 sub base that was there
I am down to rock solid mud (not top soil) and I still need to go down another 60mm for my slab and base thickness.
I am going to use SBR in my mortar and I did a test and it foes ROCK SOLID.
So my issue is - do I just vibrate the mud down when doing the type 1 on the rectangle bit and then just lay with the mortar containing SBR
I am 99% sure it will be solid enough but worried of any movement because the path is surround by grass and plants on either side (i.e more soil).
It will be too much aggro to dig down another 10cm and put MOT Type 1 down.
What about a thing layer of concrete at say 25mm? By putting down one solid unit - would thing potentially remove a lot of the risk of slabs moving with ground?
Before that a patio had been in place for around 10 years.
And before that it was concreted for 20 years.
So the patio is a rectangle section that goes away from my house and then there is a path which is 90cm wide and 8m long.
The rectangle bit has type 1 on it already and I have leveled it off
With the path what I wanted to do was lower the level. This has meant I have already dug down past the MOT Type 1 sub base that was there
I am down to rock solid mud (not top soil) and I still need to go down another 60mm for my slab and base thickness.
I am going to use SBR in my mortar and I did a test and it foes ROCK SOLID.
So my issue is - do I just vibrate the mud down when doing the type 1 on the rectangle bit and then just lay with the mortar containing SBR
I am 99% sure it will be solid enough but worried of any movement because the path is surround by grass and plants on either side (i.e more soil).
It will be too much aggro to dig down another 10cm and put MOT Type 1 down.
What about a thing layer of concrete at say 25mm? By putting down one solid unit - would thing potentially remove a lot of the risk of slabs moving with ground?
