Question

in 1756 the romans developed thr method of making aqueaus cement​

Answer 1

Answer:

After the fall of the Roman Empire in the A.D. 400's, the art of making cement was lost. It was 13 centuries later, in 1756 that the British engineer, John Smeaton pioneered the use of hydraulic lime in concrete, using pebbles and powdered brick as aggregate.

Answer 2

Answer:

John Smeaton 

Explanation:

After the fall of the Roman Empire in the A.D. 400's, the art of making cement was lost. It was 13 centuries later, in 1756 that the British engineer, John Smeaton pioneered the use of hydraulic lime in concrete, using pebbles and powdered brick as aggregate.