is concrete cement?
While cement and concrete are related they are nowhere near the same thing! Cement, which is the abbreviation of the correct name, Portland cement is a fine grey powder which looks very much like grey flour. Most people have never seen cement. Concrete is a mixture of cement, sand, rock, water and small amounts of additives. Concrete is the material we encounter in our everyday lives. The relationship between cement and concrete is similar to the relationship between flour and cake.