The mortar for setting all stonework must be composed of at least one part nonstaining Portland cement to three parts of clean, white, coarse sand, tempered with lime putty.
Nev. Admin. Code § 452.090
The mortar for setting all stonework must be composed of at least one part nonstaining Portland cement to three parts of clean, white, coarse sand, tempered with lime putty.
Nev. Admin. Code § 452.090