CMUs with a natural texture from crushed stone are referred to as what?

Exposed aggregate CMUs (Concreteness Masonry Units) are specifically designed to showcase the natural texture created by integrating crushed stone into the concrete mix. This technique involves the removal of the top layer of cement paste, revealing the aggregate underneath and giving the block a distinctive, aesthetic surface that can enhance the overall look of a structure.

This type of CMU is often used in architectural applications where appearance is essential, allowing for a combination of functionality and visual appeal. The texture and appearance of exposed aggregate CMUs can also provide better traction and may be more resistant to weathering compared to smoother surfaces.

In contrast, textured CMUs can refer to a broader category that may include different surface finishes, while architectural CMUs focus more on aesthetic qualities without specifically highlighting the aggregate. Standard CMUs typically have a basic, smooth surface and are intended for general utility rather than architectural appeal.