Concrete vs. Cement
If you other parents have read truck books as many times as I have, you may have wondered at the difference, if any, between concrete and cement. Sometimes trucks are referred to as cement mixers, other times they’re called concrete mixers. Concrete is a mixture of cement plus gravel and sand, so they’re not the same thing. Concrete contains cement; cement is an ingredient of concrete. Concrete has more letters than cement; I try to remember the difference this way.