Question

. Mortar was a combination of sand, lime and water

used as a bonding agent in ashlar masonry It was very common in the ancient world.
What was the major contribution the Romans made
to the mortar recipe, and how did it improve
building?

Answer 1

Step-by-step explanation:

since the romans were big on roads, I think they added aggregate to the mix. I mean small rocks, so it would go farther and also have more strength as people / horses / carts moved over it.