what is the analayz of cement type 2 ?

Answer 1

Type 2 portland cement is cement that has been modified to have better resistance to sulfates - a great quality to have if the concrete you're making ends up being in contact with soil containing a lot of sulphur like in the Western part of the U.S. It about the same price as type 1, but has some other limitations.

Here is the breakdown of its chemical makeup (by mass %):

51% - C3 S
24% - C2 S
6% - C3 A
11% - C4 AF
2.9% - MgO
2.5% - SO3
0.8% - Ignition loss
1.0% - free CaO

I can't figure out how to do subscripts, but those are all molecules above... I just inserted spaces to make it more clear.

Here's a boat-load more information, if you want it:

http://en.wikipedia.org/wiki/Portland_cement
http://www.cement.org/basics/howmade.asp

Hope that helps!