When you are walking on a sidewalk, do you look down and say you are walking on cement or concrete, or are they the same?  They are as different as flour and a chocolate chip cookie.  Cement is a binder that is created from ingredients found in limestone.  These ingredients are heated to form a solid rock-like substance, then ground into a fine powder.  Cement is very rarely used alone but is one of the four ingredients in concrete.  Concrete is made up of cement, water, aggregate (rock), and sand.  The cement binds the other ingredients together and hardens to form concrete.  So, is cement and concrete the same?  Not at all.  The sidewalk you are walking on is the mixed product… CONCRETE.