What do I fill this hole with?

[spanner_monkey]

Hi,

I have removed an old fireplace from my flat, the hole has been covered and now I’m left with a rectangular ‘hole’ in the concrete floor, almost uniformly about an inch deep.

I need to fill this to bring the floor up to level. I intend to lay parquet floor over it so needs be flat. The question I have is, what should I fill it with; levelling compound, mortar, concrete or something else?

Thanks

 

[Wayners]

This or smaller if you can find one.

Setcrete Concrete Repair Mortar - 2.5kg | Wickes.co.uk

Setcrete Concrete Repair Mortar - 2.5kg

www.wickes.co.uk

As it's sets (1.5hours ish) damp sponge and polish over with blade like scraper