shamgar, welcome to the forum!!!!

First off have you had your water tested for PH and calcium hardness? It's hard for me to imagine a rock quarry needing to be limed.

A very educated guess would be that you will kill a bunch of fish with liquid lime! It's great for soil but will raise the PH in a pond like Hydrated Lime. In fact it probably IS hydrated lime. Even if it's not Hy lime it will be very short lived and probably not worth the expense.

What is the brand name of the liquid lime you plan to use? Most road rock is made from limestone if you can get that delivered.

Again, welcome to the forum! We're glad you found us before you make a decision that could cost you fish---most of us did it AFTER killing a bunch or some sort of other mistake.