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A platform for research: civil engineering, architecture and urbanism
Optimisation of chloride quantification in cementitious mortars using energy-dispersive X-ray analysis
Chlorides are responsible for initiating steel corrosion in reinforced concrete, the economically most important deterioration mechanism in concrete infrastructure. The quantification of chlorides is commonly performed by wet chemical analysis, e.g. acid dissolution and Volhard's titration. Energy-Dispersive X-Ray Spectrometry (EDS) is a powerful tool that can be employed in the detection and quantification of chlorides in cementitious materials. In order to provide fully quantitative analyses, a reference sample must be employed for calibration purposes. In this paper, commercially available microanalysis standard mount and a laboratorymade reference sample were used. Results show that the precision of the lab-made reference mount is suitable for cementitious analysis. Subsequently, chlorides were quantified in mortar specimens with concentrations of 1 and 2% wt cem. Results show that quantification of chlorides by employing different minerals was in the range of 0.8 and 1.6% for each sample, respectively.
Optimisation of chloride quantification in cementitious mortars using energy-dispersive X-ray analysis
Chlorides are responsible for initiating steel corrosion in reinforced concrete, the economically most important deterioration mechanism in concrete infrastructure. The quantification of chlorides is commonly performed by wet chemical analysis, e.g. acid dissolution and Volhard's titration. Energy-Dispersive X-Ray Spectrometry (EDS) is a powerful tool that can be employed in the detection and quantification of chlorides in cementitious materials. In order to provide fully quantitative analyses, a reference sample must be employed for calibration purposes. In this paper, commercially available microanalysis standard mount and a laboratorymade reference sample were used. Results show that the precision of the lab-made reference mount is suitable for cementitious analysis. Subsequently, chlorides were quantified in mortar specimens with concentrations of 1 and 2% wt cem. Results show that quantification of chlorides by employing different minerals was in the range of 0.8 and 1.6% for each sample, respectively.
Optimisation of chloride quantification in cementitious mortars using energy-dispersive X-ray analysis
Optimierung der Chlorid-Quantifizierung in Zementmörteln mittels energiedisperser Röntgenanalyse
Pacheco, J. (author) / Copuroglu, O. (author) / Polder, R.B. (author)
2013
14 Seiten, 9 Bilder, 2 Tabellen, 28 Quellen
Conference paper
English
Steel Fibers in Cementitious Mortars
| British Library Conference Proceedings | 1993
| BASE | 2014