Why do people call a concrete mixer a cement mixer?
The difference between concrete and cement is that concrete contains cement plus sand and gravel. It is the cement that binds the sand and gravel or crushed rock together to form what we call concrete. So it really doesn't matter what you call it because technically it is both it mixes cement and concrete.
Because cement is the mortar mixture used to make concrete. Concrete is cement mixed with aggregate like sand or gravel for building purposes. But you can mix cement without adding anything to it. So the mixer is a CEMENT mixer, NOT a concrete mixer.
I AGREE! It's the same as calling it a gravel mixer or a sand mixer. Why not call an ice cube tray a water tray. The only thing I can think of is that it can be used to mix either concrete or mortar, and the common ingredient which is most needed is cement. I don't think Sand mixer or Water mixer or even Mortar mixer would have done it justice!
Because they don't really know what they are talking about, that's why. However, it's not really their fault. The two words have become synonymous over the years. It's similar to the name Kleenex. Kleenex is a brand name, not the name of a product. The product is a facial tissue, but when you want to blow your nose you ask for a Kleenex even though it may not be the Kleenex brand. The same thing happened with cement and concrete. Technically speaking, cement is the powder that you add to sand, gravel, and water to get concrete. The product is concrete, but the ingredient that makes the product is cement. People have been confusing the two for years.
It developed as a layman's term, where as most people call concrete, or mortar cement not realizing that cement is only one ingredient in concrete and mortar. So because there are more laymen, than skilled tradesmen in the masonry business, the term stuck
