Tiles

A flat, thin, usually square piece of baked clay, plastic, or other material used for covering floors, walls, or roofs: a tile floor. ceiling tiles.

The tiles themselves are generally made from a mixture of water, sand, and clay. However, the spaces between the tiles, known as “grout,” are filled with a separate mixture of water, sand, and “cement” like material. In some installations, the tile grout is made from epoxy instead of cement.