Can I add dryer lint to concrete to help reinforce it for my water pond?

I am redoing the walls on my water pond and I want to cement in some of the rocks because my dog keeps pushing them in. I know they sell stuff to add to concrete to help it hold up better when useing it on water features. But last time i checked I would have to order it and I am trying to save money. Do you think adding some dryer lint to the cocrete would do the same thing?