Pour a Concrete Slab

Step 17

Smooth again.

If you have opted for a broom finish (next step), use a magnesium float again to gently smooth the lines produced when you used the jointer and the edger. If you want a smoother finish, have an experienced finisher use a trowel to produce a "hard finish."

The professional will run the trowel across the surface in wide, sweeping arcs with a moderate amount of pressure, barely bringing moisture to the surface.