I culled this up from article (see link below) on Thisday. The article explains how a tonne of cement translate to a bag of cement. This is important info for any analysts.
Cement is often purchased in tonnes and when converted, one tonne of cement is equal to 1000 killogrammes of the product. So basically, a tonne of cement will produce about 20 50kg bags of cement.
Meanwhile, you can follow the link below for the instructive article which depicts the price war between Dangote Cement and Lafarge following slashing of cement prices by Dangote Cement.