The last few years that I worked at the electric power generation plant we re-powered two 295MW steam turbines with two circulating fluidized bed boilers. Initially they used trucks to remove used limestone. There was quite a bit of it. Shortly thereafter they decided to use rail cars (covered hoppers) to remove the used limestone. After some discussion they decided to use a Track Mobile as switcher, pulling or pushing the empties in and removing the filled ones out. I decided I needed to have my own Track Mobile.
Sadly, just as I retired it was decided to paint the Track Mobile pink, but it once looked like my model.