Contents
The physico chemistry in depth from the quarry to the final hydration
Our aim = sell cement
How?
By meeting our
customers’ requirements
Ease of use:
– workability
– lump free powder
– other customer’s requirement
Setting time
Resistance
Long term strength
Lasting quality, shrinkage
Swelling, expansion
Colour
All these characteristics are directly linked to the cement composition
Hence, the importance of knowing the physico chemistry in depth from the quarry to the final hydration
Prerequisites Composition of raw mix Composition of clinker
At first the raw material coming from the quarry has to be ground
You can add constituents to obtain the composition you require
Composition of raw mix
1st stage: evaporation
2nd stage: dehydration
3rd stage: decarbonation
Loss of ignition
4th stage: clinkerisation
5th stage: cooling
From raw mix to clinker…
Clinker minerals
We can read the temperature on this diagram