What is the finish of concrete cast without forms called?

The finish of concrete cast without forms is known as an unformed surface finish. This term describes the texture and appearance of concrete that has been set without the standard molds typically used to shape concrete during the curing process. When concrete is poured directly onto a surface without molds, it often retains a more natural, rough texture, which is why it is referred to as unformed.

In contrast, formed surface finishes involve the use of molds to shape the concrete, which typically results in a smoother and more uniform finish. Polished surface finishes are achieved through subsequent processes that grind and polish the surface of cured concrete to a shine, while rough cast finishes suggest a more intentionally textured surface, often created with casting techniques that provide a distinct, rougher feel. Being familiar with these terms is essential for understanding the different methods and results of concrete finishing processes.