Assertion: concrete | /r/HasProperty | exposed
Facets:
value: to wetting and drying cycles
type: TEMPORAL
Source sentences:
text: Any concrete that will be exposed to freeze-thaw and deicing salts must have entrained air to prevent spalling of the surface and even complete breakdown of the concrete.
text: Sulfate attack and salt crystallization are more severe at locations where the concrete is exposed to wetting and drying cycles, than continuously wet cycles.