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