highly significantP < 0.0001
Polynomial regression models for 28-day compressive strength and fluidity were highly significant ( P < 0.0001), with F-values of 52.57 and 22.01 and R 2 values of 0.9228 and 0.8334, respectively.
Polynomial regression models for 28-day compressive strength and fluidity were highly significant ( P < 0.0001), with F-values of 52.57 and 22.01 and R 2 values of 0.9228 and 0.8334, respectively.