I enjoy learning new things all of the time.  I guess you could say I’m a trivia buff.  I’ve just got a curiosity that can’t be satisfied!  So I do a lot of browsing on the Internet, to satisfy my curiosity!  Today I was learning about Ordinary Portland Cement.  I did not know that there were five different types of Portland Cement.  I also did not know that cement is different from mortar or concrete - I thought they were just different words for the same product!  So today I learned that cement is one of the ingredients used to make mortar and concrete, but is NOT mortar OR concrete!  And I learned that different types of cement are used for different purposes.  Some types harden quicker than others, some can be buried and some can’t be buried.  Cement really is a remarkable product!