Rock Salt Concrete Finish - Alternative Salts

Howdy! I'm putting some concrete walks around the inner courtyard of a Japanese house to act as walks as well as to raise grade and clean up the feel. It rains a lot here and I feel like I don't care for broom finishes on account of messy looking. I like Rocksalt finishes but am having some trouble finding large NaCl right now. There are a variety of snow melters as well as CaCl I believe though that is used as a accelerator I think. What products aside from NaCl are used? Thanks!

Finishers use the rock salt used for water softeners. You can also get a roller that imparts the same finish, more-or-less. These folks might have something that you'd find interesting. Texture Roller for Concrete

Yea, I found the salt in the form for softening.. I'm pretty sure.. does anyone have a calculus table for determining how much salt to order? I know once I'm doing the salting I can eye the result, but I don't want to run out of material... So the best would be a set of images of concrete with salt finish with approx weight of salt used per area detailed... barring that some kind of light to heavy suggestion.. I saw an article on Concretenetwork I think, giving some range but it was I believe mistyped to some degree so I am looking for some correspondence with experienced people. I understand thus far a range from 3 lbs per 100 sq ft up to 12 lbs for similar area. Thanks!