A MATHEMATICAL-MODEL FOR THE PREDICTION OF CEMENT STRENGTH

In this paper a mathematical model for the prediction of Portland ceme nt compressive strength after 2, 7 and 28 days is developed and the im portance of chemical-mineralogical and fineness factors is pointed out . It is shown that the fineness is the predominant factor affecting th e early strength while the chemical and mineralogical synthesis of the cement contribute to the strength development after 7 and 28 days. Th e 28 day strength of the cement is significantly affected by the distr ibution of the material in the size fractions <3 mu m, 3-16 mu m, 16-2 4 mu m and 24-32 mu m.