کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1456752 1509777 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Solution of the nonlinear Poisson–Boltzmann equation: Application to ionic diffusion in cementitious materials
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Solution of the nonlinear Poisson–Boltzmann equation: Application to ionic diffusion in cementitious materials
چکیده انگلیسی

A robust numerical solution of the nonlinear Poisson–Boltzmann equation for asymmetric polyelectrolyte solutions in discrete pore geometries is presented. Comparisons to the linearized approximation of the Poisson–Boltzmann equation reveal that the assumptions leading to linearization may not be appropriate for the electrochemical regime in many cementitious materials. Implications of the electric double layer on both partitioning of species and on diffusive release are discussed. The influence of the electric double layer on anion diffusion relative to cation diffusion is examined.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 44, February 2013, Pages 8–17
نویسندگان
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