Decorative aggregate concrete, such as colored glass or crushed stone, can add a great uniqueness to a concrete countertop. Aggregate concrete is not very difficult to use and it creates a total custom look. However, it does require more work than just pouring the concrete because you need to expose the aggregate through careful grinding and optional polishing.
Here are three basic ways (ranked from easiest to most difficult) of getting the decorative aggregate concrete into a pour-in-place concrete countertop:
- Mix all of the decorative aggregate in with the concrete.
- Placing aggregate in the bottom of the mold when precasting (pouring upside down)
- “Seeding” the aggregate in the top of the concrete once the forms are filled.