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    • 3. 发明授权
    • Method for modeling the transport of ions in hydrated cement systems
    • 在水泥水泥系统中离子迁移的建模方法
    • US06959270B2
    • 2005-10-25
    • US09863904
    • 2001-05-24
    • Jacques MarchandEric SamsonYannick Maltais
    • Jacques MarchandEric SamsonYannick Maltais
    • G01N27/416G01N33/38G06G7/48G06G7/58
    • G01N33/383
    • The present invention relates to a computational tool that allows to evaluate the degradation of cement-based materials under various types of chemical attacks such as sulfates, chlorides, and plain water. It is based on the physical principles of ionic mass conservation and chemical equilibrium between a solution and different solid phases. The effect of the dissolution or the precipitation of solid phases on the transport coefficients is considered. A method for determining an ion concentration in solution of at least two ions capable of undergoing transport in a cement-based material under a chemical attack and a solid phase profile for at least one component of said cement-based material is provided. A method for determining a diffusion coefficient for each of at least two ions capable of undergoing transport in a cement-based material is also provided.
    • 本发明涉及一种计算工具,其允许评估在各种类型的化学侵蚀下的水泥基材料的劣化,例如硫酸盐,氯化物和普通水。 它是基于离子质量守恒的物理原理和溶液与不同固相之间的化学平衡。 考虑固相的溶解或沉淀对传输系数的影响。 提供了一种用于确定在化学侵蚀下在水泥基材料中进行运输的至少两种离子的溶液中的离子浓度的方法和用于所述水泥基材料的至少一种组分的固相分布。 还提供了一种用于确定能够在水泥基材料中进行运输的至少两种离子中的每一种的扩散系数的方法。