Cement Grinding Aid Dosage
Cement grinding aid dosage is expressed as a percentage of cement mass or grams per tonne (g/t).
| Parameter | Typical range |
|---|---|
| Dosage (% of cement) | 0.02 - 0.08% |
| Dosage (g/t) | 150 - 500 g/t |
| Common working range | 0.03 - 0.05% |
| Standard cap (JC/T 667) | ≤ 0.5% |
The optimum is found by a mill trial: raise dosage until output/Blaine/strength gains plateau, then set the economic dose. Request our dosing recommendation for your cement.
FAQ
How much grinding aid per ton of cement?
Roughly 150-500 g/t (0.02-0.08% of cement mass); most plants run 0.03-0.05%.
What happens if I over-dose?
Excess grinding aid gives diminishing returns and can affect setting; dose to the economic optimum found in a mill trial.
Does dosage change for VRM vs ball mill?
Yes; dosage is optimised per mill and target Blaine.
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