Breaking concrete, laying concrete, even some hard maths - at the ABANDONED apartment ep15 

We are breaking out the concrete this week, after the contractors cut all the channels for us. Some of it is very hard, no idea what it was made of, but some of it in the bathroom really gave a good fight!
It was good to finally put some back too, as there are a lot of piles of broken concrete waiting to go back into the trenches.