Question

Gypsum wall board (also called drywall or sheetrock) is often used to protect a type V wood frame building from fire. The sheets of gypsum are manufactured with a ________________ process meaning they are chemically hydrated. When exposed to the heat of a fire , the water is sacrificed called calcination, thus protecting the wood framing.

a) Calcification
b) Dehydration
c) Carbonation
d) Sedimentation

Answer 1

Gypsum wall board is manufactured with a dehydration process and chemically hydrated by water. During a fire, the water in the gypsum is sacrificed through calcination to protect the wood framing.

Step-by-step explanation:

Gypsum wall board, also known as drywall or sheetrock, is chemically hydrated during its manufacturing process. The sheets of gypsum are manufactured with a process called dehydration. This means that they are chemically hydrated by water. During a fire, the water in the gypsum is lost through a process called calcination, where the water is sacrificed to protect the wood framing of the building from the heat.