Inorganic Chemicals Industry >
Investigation progress of ageing process of plaster of paris
Received date: 2020-03-22
Online published: 2020-12-17
The reaction mechanism of AⅢ-CaSO4 and water vapour and the dehydration mechanism of CaSO4·2H2O during ageing process of plaster of paris were investigated.The fundamental of ageing process of plaster of paris was first introduced,then the physical adsorption and chemical adsorption of water vapour on AⅢ-CaSO4 in the ageing process of plaster of paris were interpreted,and afterwards the dehydration performance and dehydration kinetics of CaSO4·2H2O crystal in the ageing process of plaster of paris were described.Finally,the crystal structures of CaSO4·2H2O,CaSO4·0.5H2O and AⅢ-CaSO4 were mentioned.
Yuanhui Liu , Xiaona Tang , Lei Xie , Xiaopeng Jiang , Yunbo Zhang . Investigation progress of ageing process of plaster of paris[J]. Inorganic Chemicals Industry, 2020 , 52(9) : 15 -20 . DOI: 10.11962/1006-4990.2019-0521
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