Using slurry primer to adhere to concrete twice?

[Tony K]

Evening.

I am going to update this old concrete path by laying slabs on top. The path is stable and the levels work.

 

My plan is to give the path a good clean, then, on a slab by slab basis, paint a layer of slurry primer straight into the path, then add my bed mix (I'm thinking 5:1) then back butter the slabs with further primer, then lay it.

 

Is that effective? I can't think of a reason why it shouldn't be, but am not experienced in this area. 

 

Also, any tips on the best slurry? I've seen various recipes involving cement, PVA, various mix additives etc, but never used any.

 

Cheers 

Edited April 3 by Tony K

[nod]

SBR 3-1 with dry  cement mixed in with a drill to a yoghurt thickness 

[Russell griffiths]

Don’t use pva. 
i would hit the concrete with a pressure washer first. 

[Tony K]

  On 03/04/2025 at 22:05, nod said:

SBR 3-1 with dry  cement mixed in with a drill to a yoghurt thickness 

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And am I doing the right thing by applying the slurry to the cleaned path surface, and also to the underside of the slabs?