Assertion: mortar's strength | /r/CapableOf | increase 250 psi
Facets:
value: for astm c90 concrete block
type: TRANSITIVE-OBJECT
Source sentences:
text: For ASTM C90 concrete block, the assembly compressive strength only increases 250 psi when the mortar is changed from Type N to Type S (from an f’ m of 1750 psi to 2000 psi for CMU units with 2000 psi compressive strength).