Characterization and application of automated in-vacuum PIXE/EBS system for direct analysis of chloride and sulfate ions attack in cementitious materials

Rihawy, M.S.; Alwazzeh, M.; Abbas, K.

doi:10.1016/j.nimb.2017.10.038

Cited by 4 publications

(3 citation statements)

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“…Figure shows chloride and sulfate diffusion profiles cross the radial direction of the cylindrical mortar samples. Concentration values were obtained using GUPIX software, following careful calibration of the PIXE system . These results represent mean values of four PIXE measurements performed for each position on four mortar samples.…”

Section: Resultsmentioning

confidence: 99%

“…Mortar mixes were previously adopted, and six different mortar mixtures were investigated in this work and classified in two sets. The first one was composed of three mortars having three different water to cement (w/c) ratios, namely.…”

Section: Methodsmentioning

confidence: 99%

“…Adverse chemical reactions of ions with concrete structures are major cause of deterioration. Chloride and sulfate ions ingress together with carbonation process of concrete structures causes harmful chemical reactions . Therefore, the service life of concrete structures is strongly dependent on ions transport processes, which occur within the pore of concrete.…”

Section: Introductionmentioning

confidence: 99%

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PIXE data analysis by two‐dimensional correlation mapping techniques: Analysis of chloride and sulfate ions attack in homemade mortar samples

Lafi

Rihawy

2019

X-Ray Spectrometry

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Chloride and sulfate ions ingress behaviors in concrete are more complex and complicated processes than can be described by Fick's law of diffusion.A new approach based on two-dimensional correlation mapping (2D-CM) and particle-induced X-ray emission (PIXE) spectra was successfully applied to describe their transportation process. The use of hybrid 2D correlation enabled a fast comparison of ions ingress, whereas multiple perturbation correlation spectroscopy enabled the study of compositional factor affecting the ingress process. It was shown that by rearranging the same data in different ways, different techniques of 2D-CM could be applied and new information could be derived. The 2D-CM findings were in line with the classical PIXE analysis and consistent with the underlying physics of the experiments, which suggested that it will be a powerful and fast data analysis tool for PIXE spectra.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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