Assertion: mortar | /r/CapableOf | act as a bedding material
Facets:
value: historically
type: TEMPORAL
value: unlike an expansion joint
type: OTHER
Source sentences:
text: Historically, mortar acted as a bedding material—not unlike an expansion joint—rather than a "glue" for the masonry units, and moisture was able to migrate through the mortar joints rather than the masonry units.