Clinker produced by the wet method is sieved with I″, 3/4″, 3/8″, no 4, 49mesh/_??_cm. The classified clinker is ground with 3% gipsum by a test ball mill. Auther made chemical analysis and strength test according to the japanese standard specification
Conclusion.
1) H. M. of clinker in middle size is greatest.
2) S. M. is greater when clinker is greater insize.
3) A. I. is the same in the case of S. M.
4) The strength is the better the higher of H. m. when S. M. is almost the same but when the S. M. is great different, it is not always true.
5) Tensile strength is more influenced by the S. M. than compressive strength.
6) When the H. M. is the same, cement is the better the higher S. M.
7) Clinker dust is always bad. It is a proof of the bad condition in the kiln.