concrete mixing?

I would like to know how I show pebbles inside a concrete mix.

mikeasaurus4 months ago

Exposing the aggregate is done by grinding away the top layer, as discussed in the Grinding Lesson.

Another method is to sprinkle a retarder to the top layer after casting, then using a hose to wash away the concrete top layer and show the aggregate underneath. I have not done this method myself, as it's usually tricky and best left to professionals.