Effect of Additives on the Rheological and Mechanical Properties of Microfine-Cement-Based Grout

Table 3

Rheological properties of fresh grouts.

NC content (%)	Τ0	η	Regression equation	R^2
0	0.59	0.024	τ = 0.59 + 0.024η	0.961
0.5	0.89	0.029	τ = 0.89 + 0.029η	0.988
1.0	1.23	0.033	τ = 1.23 + 0.033η	0.989
2.0	1.31	0.049	τ = 1.31 + 0.049η	0.988

τ₀: yield stress (Pa); η: plastic viscosity (Pa·s), and R²: regression coefficient.