Assertion: concrete's material | /r/HasProperty | limestone
Facets:
value: usually
type: DEGREE
value: mainly
type: DEGREE
Source sentences:
text: The predominant raw material for the cement in concrete is limestone, the most abundant mineral on earth.
text: The predominant raw material for the cement in concrete is limestone.
text: Portland cement, the kind most often used in concrete, is made from a combination of a calcareous material (usually limestone) and of silica and alumina found as clay or shale.
text: The major raw material for the clinker-making is usually limestone (CaCO 3 ) mixed with a second material containing clay as source of alumino-silicate.
text: The predominant raw material for the cement in concrete is limestone, the most abundant mineral on earth.
text: The first step is to quarry the principal raw materials, mainly limestone, clay, and other materials.