Cement pridaction

Hellow. 

In our plant we produce 42.5n but limstone in cement mill we use 20percent.  The main probleam is our cement is coming to light. I dont want light cour like these. 

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re Cement pridaction

Hello,

The only realistic ways to reduce the lightness of your cement are to;-

(a) Lower the amount of limestone in the cement.

or

(b) make the clinker colour darker by increasing the iron content (or by adding 1-2% manganese oxide to the raw mix.)

Both will increase your cost/tonne cement.

Regards,

Ted.

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