limestone is calcium carbonate, or chalk. When dissolved and mixed with ash products like lye, it forms quick lime and you can use that to make something like portland cement which is a base material in concrete.
However, granite is a silicate and it's not dissolvable in water.
Having the materials be molded instead of carved makes a lot of sense. It can explain the close fits between blocks.
The concrete pumps were epic
Hey mon, we don't need no pumps when we gots da slave laboor ta carry eet up da ramp.
If they did this with limestone could they do it with granite? Machu pichu
Not likely, for this reason:
limestone is calcium carbonate, or chalk. When dissolved and mixed with ash products like lye, it forms quick lime and you can use that to make something like portland cement which is a base material in concrete.
However, granite is a silicate and it's not dissolvable in water.