The Concrete Sink Reveal

The concrete sink forms were removed after 1-day. The bottom was lightly ground to ensure a flat surface.

After carefully removing the forms, here is what the sink looks like. Like any new baby, fresh concrete items rarely look that good. The integral grey dye ensured the mixture had a uniform color. This sink has two faucets and a flat bottom that slopes to a single drain. The inset ledges are there for sliding removable countertop pieces. The bottom of the sink will be copper and will not get all that much finishing.

The piece in front is part of the matching backsplash. Since this was a mortar (no coarse aggregate only sand), cube samples were placed to determine the rate of strength gain.
Notice the front inside lip of sink. A portion of the concrete chipped and will require some filling. Some chipping is normal and can be easily repaired.
Individual tiles which match the shower surround were inlaid in both the backsplashes and the corner of the sink. The left side shows the blue foam used to hold the tile onto the mold. The right side shows the inlay after a little cleaning.

The sink will be covered with wet towels for 7-days to allow the concrete to cure. At 7-days the concrete is soft enough for initial grinding to reveal any aggregate. Since this mixture does not contain any aggregate it will only be lightly ground to make a smooth surface.