I have to do a minor repair to a stone fence, but I have never worked with native stone and mortar before. The original stones that fell out of the fence are there, so I don't need to worry about choosing the right stones. Also, I have to mortar in one of the hinge bolts of an old cast iron gate and raise it to the exact height that will allow the gate to latch properly on the other side. Do I need to shim the bolt, or can I just use the mortar to raise it up a bit?
What kind of mortar should I pick up and how much will I need for a few stones? Also, are there any tricks to using this kind of mortar? What's the best way to mix it up, what consistency do I make it, and how long can it sit in a wheelbarrow before it hardens up? Any tips on troweling it on?