I heard that P2O5 affects on clinker properties, it can improve late strength of cement but I am not sure if is it correct or not?!? If you have any experience relate to this topic, please share us
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I have some experience with that affect. At the first few times, I didn't believe P2O5 can improve late strength of cement but now I think it is true. Please also note that if P2O5 in clinker increases, early strength will be lower than normal condition. In my plant, if P2O5 increases 0.15-0.2% I can see a big change in cement quality
Phosphorous pentoxide(P2O5) limiting range should be max 1% and preferable range should be 0.3-0.5%.A higher P2O5 have following effects,
1.Accelerates the clinkerization reaction.
2.Reduces the intensity of internal recycle.
3.Reduces early strength.
4.Reduces C3S content.