what is the composition of cement?

Question

i had a project WORK on cement.
so anyone who knows any information about cement :composition in manufacturing,industries leading,...... etc. please give me.

vamsy
HAVE A NICE DAY

Answer 1

It depends on exactly what kind of cement you are referring to. Portland cement is the most common kind, and it has several types with slightly different compositions. I happen to have information on type 2 handy... here:

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

Answer 2

http://www.cement.org/manufacture/

Answer 3

calcium carbonate.

Answer 4

"ce" and "ment" - mix slowly!!!!