Fire behaviour of gypsum plasterboard wall assemblies: CFD ...
May 01, 2017 · This process, known as "gypsum dehydration" (or "calcination"), occurs in the temperature region between 80 °C and 250 °C ; the good fire resistance characteristics of GP are mainly owed to this effect. Gypsum chemical decomposition (dissociation of the chemically bound water) occurs in two stages . In the first stage (Eq.