Table 4 Objective function.

From: Design of low chloride salt deicing filler based on SCD and optimization of dosage using NSGA-II algorithm

Grade type

Optimization objective

Fit the function expression

AC-13

Interface ultimate breaking tension

y1 = 2615.10571–1.94686 x -0.39433 × 2 + 0.00211 × 3

Interface ultimate breaking tension

y2 = 3094.52857 -7.20429x -0.08766 × 2 + 0.00136 × 3

Residual stability

y3 = 93.40571 -0.11019x -3.31429E-4 × 2 +(8.53333E-6)x3

SMA-13

Interface ultimate breaking tension

y1=2757.09857-18.55462x -0.07606x2+(4.10133E-4)x3

Interface ultimate breaking tension

y2 = 3733.35714 -8.23857x + 0.07269 × 2 -(6.56E-4)x3

Residual stability

y3 = 88.57 -0.36633x + 0.008 × 2 -(4.42667E-5)x3