Fixing vertical paving slabs?

[V8 Stang]

So after a near year of work i have nearly finished a patio....

However i didn't like how it met the grass, mostly as the grass is so uneven, one end was 50mm below the patio, the other 50mm above, with the centre flush.


So have decided i would like to make a step out of left over paving, create a 50mm or so step, then level the grass to suit.


I have dug a 200mm deep trench up to the paving, cut through the excess mortar and carefully removed some hardcore, so that a slab can go vertical, then backfill with dirt and level.






I am thinking of shoving a few inches of mortar in the trench, wedge some into the hardcore, then push the slab into the mortar.

Maybe coat the back and bottom of slab in paving slurry to give it some extra stick.

Do we think this should this work ok? Or a better way of doing it?

Cheers

[OutInTheShed]

I don't know if it will work, but I like the idea and may 'borrow' it.

[Mr Squarekins]

I'd use an angle grinder to cross hatch the back of the uprights before you start. It will provide a key to grip.

[PhilboSE]

Tiling adhesive.

[J6542]

Ct1 will stick them to the other slab, mortar in the bottom

[fourstardan]

Could you not at least of helped my OCD and used correct sizes

[andyxxx]

I don’t think it will look good seeing the top edge of the new vertical slabs.

I would take a bit more grass and topsoil out (perhaps 500mm from patio) then put the soil back in at a universal ‘correct’ height and re-seed or turf

[119]

Be careful not to have the mortar too high up the face of the slab where it meets the grass underneath as it can prevent the grass from proper growth.

[Sporky]

fourstardan said:

Could you not at least of helped my OCD and used correct sizes

It looks to me like the gaps line up with the next row of flat slabs.

[Pheo]

Should work ok I think. You could backfill the trench with gravel as well to make more of an edge (although you’ll need to edge the grass)

[Vanden Saab]

It will work for a month or two, then you or someone else will catch the edge and pop one off. If you are really careful and avoid that then over winter the rain, moisture or ice will get in and by spring they will be a gap or total failure.
The only permanent solution is to (very,very carefully) cut the base back with a small grinder so the pieces can be slotted in underneath.

[V8 Stang]

Thanks guys, i had a day off yesterday so got half fitted.

I just dumped some mortar in the hole and a bit on the side tapped it in place, and a bit of clear CT1 onto the top slab side.

Its gone off now and they are completely solid.

I am pretty happy with how it looks.


Varden, lets hope for the best, or i could seal along the top edge to stop water getting in?






Got to dig out the other side now!

[s2sol]

fourstardan said:

Could you not at least of helped my OCD and used correct sizes

There's irony here, for sure.