We just redid our driveway, patio etc with new concrete. It is 6"
gravel, 6" concrete with wire mesh on the driveway and 5+5, no wire
mesh, elsewhere.

Unfortunately, a kid stepped on one place on the driveway and there is
a imprint of his step about 5mm deep or so. My wife is livid about
this, as she is wont to be in general.

So, I am thinking if I can fill the hole.

My idea was to take a solid epoxy 100% solids from raka.com, which I
have, mix with portland cement for color, and apply to the imprint. It
is very clean right now and is not contaminated with oil etc.

Would this work or not? It is in the worst part of the driveway (next
to the road). We have snow, ice, salt, etc.