Assertion: asphalt | /r/HasProperty | heated
Facets:
Source sentences:
text: Asphalt is basically an inert material that must be heated or diluted to a point where it becomes workable for the production of materials for paving, roofing, and other applications.
text: Asphalt itself is a hydrocarbon mixture that is heated until it has the consistency of tar.
text: Both the asphalt and the aggregates must be heated before mixing.