The ornamental design for a bladearticle for a concrete surface grinding wheel, as shown and described.
FIG. 1 is a perspective view of a blade article for a concrete surface grinding wheel according to my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a rear plan view thereof;
FIG. 4 is a front elevation view thereof; and,
FIG. 5 is an exemplary diagram showing the application thereof, the broken lines being shown for illustrative purposes only and form no part of the claimed design.