Shoutout to that guy in the comments who finally explained why some Roman concrete still stands

Saw someone keep claiming it was just about volcanic ash when the real secret is the lime clasts that actually self-heal cracks, and now I can't unsee how many articles get that detail completely wrong.

2 comments

2 Comments

mila_reed13d ago

My buddy just rebuilt his driveway with that Roman mix after watching the same video.

rowan59311d ago

75% of the guys I know who tried it used way too much water and it turned into a crumbling mess. The ratio is everything or you're just making expensive mud.