ArticleMaterials (Basel, Switzerland)2023
The Influence of Chemical Activity Models on the Description of Ion Transport through Micro-Structured Cementitious Materials.
Article in Materials (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Kinetics of dissolution and computational modeling of calcium oxalate monohydrate crystals in the presence of aqueous coffee bioactive extract compounds.Scientific reports · 2026Article
- A minimal ion-chemistry model for predicting benign paroxysmal positional vertigo risk based on endolymphatic calcium and pH.Frontiers in neurology · 2025Article
- Ion Trios: Cause of Ion Specific Interactions in Aqueous Solutions and Path to a Better pH Definition.ACS omega · 2024Article
- 3D Multi-Ion Corrosion Model in Hierarchically Structured Cementitious Materials Obtained from Nano-XCT Data.Materials (Basel, Switzerland) · 2023Article
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Authors and funding
6 authors.
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Abstract
The significance of ion activity in transport through a porous concrete material sample with steel rebar in its center and bathing solution is presented. For the first time, different conventions and models of ion activity are compared in their significance and influence on the ion fluxes. The study closes an interpretational gap between ion activity in a stand-alone (stagnant) electrolyte solution and ion transport (dynamic) through concrete pores. Ionic activity models developed in stationary systems, namely, the Debye-Hückel (DH), extended DH, Davies, Truesdell-Jones, and Pitzer models, were used for modeling the transport of ions driven through the activity gradient. The activities of ions are incorporated into a frame of the Nernst-Planck-Poisson (NPP) equations. Calculations were done with COMSOL software for a real concrete microstructure determined by X-ray computed tomography. The concentration profiles of four ions (Na
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