Seal holes around duct in the concrete slab?

[Earplugged]

I have a hole in the garage slab after the installation of a culvert that I want to fill properly, what is recommended?
It's almost 4cm open around the pipe and nearly 40cm deep.
The plan is to lay tiles on the floor, so I'll have both grout and adhesive available—would these be suitable for use in the hole?

 

[BSOD]

I had applied spray foam a bit down around the culvert. Almost all the way up. Once it had set, I filled the last approximately 5cm with fine concrete, self-leveling compound, or even adhesive during the tiling process.

 

[Earplugged]

I would have used foam sealant a bit down around the culvert. Almost all the way up. Once it hardened, I would have filled the last about 5cm with fine concrete, leveling compound, or even tile adhesive in conjunction with the tiling.

Thanks, sounds like a reasonable solution 😀