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  • 标题:Charge balance calculations for mixed salt systems applied to a large dataset from the built environment
  • 本地全文:下载
  • 作者:Sebastiaan Godts ; Michael Steiger ; Scott Allan Orr
  • 期刊名称:Scientific Data
  • 电子版ISSN:2052-4463
  • 出版年度:2022
  • 卷号:9
  • 期号:1
  • 页码:1-10
  • DOI:10.1038/s41597-022-01445-9
  • 语种:English
  • 出版社:Nature Publishing Group
  • 摘要:Understanding salt mixtures in the built environment is crucial to evaluate damage phenomena. this contribution presents charge balance calculations applied to a dataset of 11412 samples taken from 338 sites, building materials showing signs of salt deterioration . Each sample includes ion concentrations of Na+, K+, Mg2+, Ca2+, Cl −, NO3 −, and SO42 − adjusted to reach charge balance for data evaluation. the calculation procedure follows two distinct pathways: i) an equal adjustment of all ions, ii) adjustments to the cations in sequence related to the solubility of the theoretical solids . The procedure applied to the dataset illustrates the quantifcation of salt mixture compositions and highlights the extent of adjustments applied in relation to the sample mass to aid interpretation . The data analysis allows the identifcation of theoretical carbonates that could infuence the mixture behavior. Applying the charge balance calculations to the dataset validated common ions found in the built environment and the identifcation of three typical mixture compositions . Additionally, the data can be used as direct input for thermodynamic modeling.
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