"Ingredient in Roman concrete" NYT crossword answer is:
ASH (3 letters length)The answer for "Ingredient in Roman concrete" crossword clue is listed above to help you solve the puzzle you are currently working on.
The ingredient in Roman concrete crossword clue NYT (October 3 2023) is pozzolana. Pozzolana is a type of volcanic ash that was used by the Romans to make their concrete. It is highly resistant to erosion and is still used in modern concrete production. The Romans used pozzolana to make their concrete stronger and more durable, and it is still used today for the same purpose.