As I have previously noted, "lime" is different from the pulverized
limeSTONE, sold as garden lime, in nurseries and big box stores.
Statues and building facades are made from limestone and do indeed yield
to the damage of acid rain and similar problems. But it takes centuries
to accumulate noticable damage.

If you want to amend your soil, real lime is what you want. Calcium
Oxide is the chemical. It is very basic and will increase the pH of
your soil very quickly. If you get the anhydrous ("without water")
version, it is very, very corrosive and you must wear protective gloves,
mask and goggles. The hydrated ("with water") is available and can be
spead with less danger on lawns, lilacs, asperagus and other plants
requiring "sweet" soil.

I tried many concrete suppliers, looking for lime. None had it.
Finally, I went to a ceramic tile supplier and they were able to sell me
50 lb for $5.25 .