Assertion: concrete | /r/MadeOf | water
Facets:
value: to cement mass ratio
type: OTHER
Source sentences:
text: Concrete is made from cement, aggregate and water.
text: Concrete is made of cement plus water, sand and coarse aggregate (or gravel rock).
text: Most concrete is made with a water to cement mass ratio ranging from 0.35 to 0.6.
text: Concrete is made from cement, aggregate and water.