Particle size distribution of ground clinker or cement

2 Particle size distribution of ground clinker or cement 

Allen (A3) discussed methods suitable for determining this important 

With all the methods, complications or uncertainties of interpretation arise due to effects associated with particle shape and with flocculation, so that the results given by different methods do not necessarily agree and usually have relative rather than absolute significance. Fig. 4.1, curve R, shows the cumulative PSD, obtained using an X-ray sedigraph, for a 

Meric (M33) discussed analytieal expressions used to represent the PSD of cements. Probably the most suceessful is the Rosin-Rammler function, which may be written in logarithmic form as 

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