Assertion: calcium carbonate | /r/CapableOf | purify metal
Facets:
value: for use in construction applications
type: PURPOSE
Source sentences:
text: In the construction industry, calcium carbonate is used as a filler in concrete, increasing its durability and appearance and to purify metals for use in construction applications.
text: In the construction industry, Calcium Carbonate is used as a filler in concrete, increasing its durability and appearance, and to purify metals for use in construction applications.