Putting creek rock on concrete block.
I need some advice from a hard core masonary man. And I'm about to start this rock job, as the block work is done and it's my home, the rocks are in a pile ,scaffeling in place, but I need advice on what kind of mortor to use,as I have fine sand to mix with it. This is an outside chimney five feet wide and 16 feet high, but does narrows down to 32 inches wide nearing the top. The creek rock varies in size from five inches diameter to 16 inches diameter and all from 3/4 inch to 1 and a half inches thick. I have a very thick footer for all this weight so no problem there. And what do you think of mixing black water base paint to darken up the grout? Any thoughts from anybody will be appreciated.