In 2010, the world production of hydraulic cement was . The vast system of Roman aqueducts also made extensive use of hydraulic cement. The masonry was set with hydraulic cement with no lime intermixture. Hydraulic cement was added where the aqueduct crossed rivers. C.B.Wright & Sons began to make "hydraulic cement" in Hull, Quebec in 1830. Conversely, hydraulic cement hardens by hydration of the clinker minerals when water is added. The country also produced hydraulic cement, limestone, marble, and sand and gravel. Hydraulic cement production totalled 267,659 tons in 2000, up from 106,515 in 1996. This was a hydraulic cement which, when mixed with sand, could be used for stucco.