Practical Engineering can answer all your questions with their series on concrete. It’s extremely well done, including a video on “Was Roman Concrete Better?”:

Practical Engineering can answer all your questions with their series on concrete. It’s extremely well done, including a video on “Was Roman Concrete Better?”: https://youtube.com/playlist?list=PLTZM4MrZKfW90PdaBFt70BLTbz1bTF6Mn https://youtube.com/playlist?list=PLTZM4MrZKfW90PdaBFt70BLTb...