Experimental study on meso-structure of glauberite soaked in water under different temperature
Abstract：The glauberite soaked under different conditions were scanned by micro CT,focused on the microscopic changes on a fixed lay,and studied the law of glauberite soaked in water affected by temperature and time.This paper combined macroscopic quality changes and microscopic porosity and crack evolution to study the dissolution properties of glauberite under different temperatures.According to the experimental data and theoretical analysis,got conclusion as follows:dissolution of glauberite continues before Na2SO4 reaches its saturation solubility,and two dynamic balance—dissolution and hydration of CaSO4 coexists in the same time.Glauberite porosity is impacted by the speed of dissolution and crystallization.Glauberite easily brokes when dissolved at room temperature,but it is relatively stable at 35,65 and 95 ℃,solution velocity is high within short time,but decreases with time increasing,and solution speed at 95 ℃ is lower than 65 ℃.The ways of glauberite dissolution-penetration are different under different temperature.
Keywords：glauberitemeso-structuredissolutiontemperature and time effect
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 2031-2037 )