The fluorescence is so weak that the ambient conditions need to be dark and the concrete needs to be hit with only a narrow band of the light spectrum. Then you need a tuned detector to pick up the weak fluorescence, after which the SNR is still so low that the raw data must be processed to produce a meaningful result.

All very doable, but I don't think this would work using a standard CCTV looking at an area bigger than a metre (few feet) across.

A long time ago in a place far far away, I was part of a team that did exactly this to differentiate between healthy and possibly pre-cancerous tissue.