Fig. 8
RSM visualization for 14-day compressive strength: (a) 2D contour plot showing EMS–RHA interaction effects and (b) 3D response surface illustrating the combined influence of both variables.
Fig. 8 | Scientific Reports
RSM visualization for 14-day compressive strength: (a) 2D contour plot showing EMS–RHA interaction effects and (b) 3D response surface illustrating the combined influence of both variables.
