Method for determining consistency coefficient of power-law cement grout

A method for determining a consistency coefficient of a power-law cement grout, comprising the following steps:

• determining a water-cement ratio ω of the power-law cement grout, wherein the water-cement ratio ω of the power-law cement grout is expressed by the following formula:
• ω
• =
• m
• w
• m
• c
• ,
• m
• w
• represents a mass of water required to prepare the power-law cement grout, and mc represents a mass of cement required to prepare the power-law cement grout;
• determining, according to engineering practice requirements, a time t required to determine the consistency coefficient c of the power-law cement grout;
• and
• obtaining the consistency coefficient c of the power-law cement grout based on a quantitative change rule between a comprehensive effect of the water-cement ratio ω and the time t and an influential effect of the comprehensive effect on the consistency coefficient c of the power-law cement grout, wherein the consistency coefficient c is expressed by the following formula:
• c=0.0387ω−6.610e(0.000270+0.000141ω)t, e represents a base of natural logarithm, and ω∈(0.50, 0.75).