Citation:
	            
		            Guo  Zi-Cheng, Sun  Shu-Qiao, Li  Jian-Jun, Chen  Xian-Tuo. Adsorptive Model and Isotherm of Water on Ettringite[J]. Acta Physico-Chimica Sinica,
							;2000, 16(07): 667-671.
						
							doi:
								10.3866/PKU.WHXB20000717
						
					
				
					
				
	        
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The adsorption isotherm of water on ettringite was determined by an automatic microelectronic thermobalance. The adsorptive behavior of water on ettringite was analyzed by the experimental results. A modified Langmuir model of adsorption was used and the isotherm equation was derived. A characteristic equation for adsorption of water on ettringite was obtained by simulation with experimental data. Each adsorption isotherm at temperature 10-40 ℃could be derived conveniently from the characteristic equation.
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								Keywords:
								
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Ettringite
, - Water adsorption,
 - Model,
 - Isotherm equation
 
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