The total change from the dry state to the fiber saturation point averages about 0.2%. This property is called deliquescence (see below).
Hygroscopic Setting Expansion Definition. Definition by gpt 8 setting expansion : Calcium chloride is so hygroscopic that it eventually dissolves in the water it absorbs:
Gypsum products in Dentistry From slideshare.net
Definition by gpt 8 setting expansion : Calcium chloride is so hygroscopic that it eventually dissolves in the water it absorbs: Expansion due to the absorption of moisture.
Gypsum products in Dentistry
In the last twenty years, there has been considerable research done in order to determine a method which will compensate for the shrinkage that takes place when casting. The average coefficient of hygroscopic expansion or contraction in length and width for plywood panels with about the same amount of wood in parallel and perpendicular plies is about 0.002 mm mm −1 for each 10% change in rh. One such variable is the size of the rfractory material particles. The smaller these particles are, the larger is the hygroscopic expansion.
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The act or process of expanding: Adding water to the surface of the investment during setting to increase the expansion of the mold. In dental casting, addition of water to surface of casting investment during setting to increase the size of the mold. Medical dictionary for the dental professions © farlex 2012. Journal of dental research 2016 39:
