Spalling repair isn't always simply cosmetic, considering that delamination can expose rebar and decrease phase capability

https://devindgtx977.nexorafield.com/posts/concrete-repair-qa-qc-testing-for-strength-bond-and-coverage

Spalling restore isn't simply beauty, when you consider that delamination can divulge rebar and reduce segment potential. Restoring the overall formula of preservation is indispensable.