Spalling repair shouldn't be simply cosmetic, seeing that delamination can expose rebar and reduce phase ability
https://riverzink358.scriblorax.com/posts/concrete-resurfacing-for-driveway-aprons-smooth-transitions-without-spalling
Spalling restoration isn't always just cosmetic, because delamination can expose rebar and reduce part capability. Restoring the overall gadget of maintenance is vital.