Tell me what is the specific gravity and weight density of portland cement?:)

Hello kgshobana

The density of portland cement is 1.44 tn/m3 - link (http://wiki.answers.com/Q/What_is_the_density_of_Ordinary_Portland_Cement)

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See also this link to a handy density conversion list of all sorts of materials. (http://www.simetric.co.uk/si_materials.htm)

I hope this helps!

Be careful here - are you truly asking about the density of cement, or do you mean to ask about the density of concrete? They are different - and many people say "cement" when they mean "concrete." There are many types of concrete, and here is a reference that gives lots of answers to what sounds like a simple question:
Density of Concrete (http://hypertextbook.com/facts/1999/KatrinaJones.shtml)

Hello ebaines

You are correct on that ! Concrete is a mixture of cement, sand, stone aggregate, and water. With so many possible different mixtures, the density indeed varies over a wide range.
The remaining amount of air in the mixture (even after trying to trill out as much as possible) is also of influence.

As kgshobana asked for the specific gravity and weight density of portland cement, I assumed the question was indeed about that specific type of cement, not about concrete. Never-the-less a good point !