Dealing with threshold after self levelling

[randytusk]

Hi folks.

I ve just finished self levelling the wonky garage floor - up to 30mm of variance across the whole slab. It s quite a thick pour resulting in a fairly substantial 20mm threshold

I ve used industrial grade screed so I m going to seal and leave as a finished floor.

Any suggestions for the threshold?

My thoughts are either a tile in ramp or would it be advisable to create a cement mortar ramp with SBR? If m wondering if a feathered edge would hold up to wheel traffic?

Edited by randytusk on Sunday 15th June 19:09

[paulwirral]

Straight forward sand cement mix with fibreglass strands and a stiff mix , sbr the existing surfaces and splash a bit in the mix and trowel to suit your levels .

[wolfracesonic]

^ Do that, though instead of a normal mortar mix, Google ‘granolithic mortar’, 3 grano dust, 1 cement and a touch of building sand: it will give you a very hard wearing, fine concrete. I’d also grind away what looks to be black garage floor paint where the ramp is going before priming with SBR. For a belt and braces job, grind/chisel out some of the existing concrete at the leading edge of the ramp so you have a bit more thickness there.

[randytusk]

wolfracesonic said:

^ Do that, though instead of a normal mortar mix, Google granolithic mortar , 3 grano dust, 1 cement and a touch of building sand: it will give you a very hard wearing, fine concrete. I d also grind away what looks to be black garage floor paint where the ramp is going before priming with SBR. For a belt and braces job, grind/chisel out some of the existing concrete at the leading edge of the ramp so you have a bit more thickness there.

That black paint is actually the bedding for the screed we poured - its epoxy-fibreglass 350gsm-epoxy and quart 1.2 blinding on top

Hmmm I have bucket of leftover quart sand - that would probably make a decent cement aggregate would it not?

[wolfracesonic]

^ Possibly, not sure, whereas grano mortar is known for its durability.

[Happy Jim]

Which screed did you use? I’ve got a similar wonky floor and will need to level it later this year.

Thanks

Jim

[randytusk]

Happy Jim said:

Which screed did you use? I ve got a similar wonky floor and will need to level it later this year.

Thanks

Jim

I used Mapei ultratop industrial. Quite a few steps to follow if you follow the datasheet.

Grind down laitance
Fill in cracks
Epoxy primer with embedded mesh
Epoxy primer with quartz broadcast to rejection

Then you pour between 5 and 40 mm

https://www.mapei.com/gb/en/products-and-solutions...

[Happy Jim]

Perfect, many thanks.

Jim