Air bubbles in a cast concrete countertop

[Lillen23]

I've cast some cement slabs for my outdoor kitchen,
There are some bubbles in certain areas.
I will sand them later so they become shiny and treat them.

What should I use to fill in the bubbles?

 

[H.Olsson]

I have cast some slabs in cement for my outdoor kitchen,
There were some bubbles in certain places.
Plan to sand them down to make them shiny and treat them.

What should I use to fill the bubbles?

Check this thread:
https://www.byggahus.se/forum/threads/att-gjuta-en-baenkskiva-i-betong-bilder-fragor.40386/