METHOD FOR DETERMINING MECHANICAL PROPERTIES OF CEMENT Russian patent published in 2017 - IPC G01N33/38 

FIELD: construction.

SUBSTANCE: initial composition of the cement system, its grinding fineness Φ and speed of compression waves as a function of time V_p(t) are the only input data in said method. The method includes: the stage (A), at which the hydration degree of the cement system is determined as a function of time α(t) from V_p(t) at the pressure P₁ and the temperature T₁; the stage (B), at which the hydration degree α(t) is determined as a function of the desired values of the cement system grinding fineness Φ_n, the pressure P_n and/or the temperature T_n; the stage (C), at which the cement system composition is determined as a function of the time C(t) and as a function of the desired values of the cement system grinding fineness Φ_n, the pressure P_n and/or the temperature T_n from α(t) determined at the stage (B); and the stage (D) on which at least one mechanical parameter of the cement system is determined as a function of time and as a function of the desired values of the cement system grinding fineness Φ_n, the pressure P_n and/or the temperature T_n from C(t) determined at the stage (C).

EFFECT: improved accuracy and reliability of determination.

14 cl, 8 tbl, 13 dwg