[DennisR]

Pourable concrete would work very nicely. 👍🏻👍🏻

[SunkenCiv]

Thanks, and yup, hence the need for water.

The ancient Egyptians didn’t use hydraulics to lift stones. Had they built something of that kind, it would have to be waterproof, integrated into the structure, be made of metal, and still be inside the pyramids.

And, it would be so slow that they’d still be working on them. :^)

[Jeff Chandler]

https://en.wikipedia.org/wiki/Joseph_Davidovits#:~:text=Davidovits%20believes%20that%20the%20blocks,south%20of%20the%20Giza%20Plateau.