Quantitative Energy-Dispersive X-Ray Microanalysis of Chlorine in Cement Paste

Deep learning-based automated image segmentation for concrete petrographic analysis

“…Petrographic analysis is a common approach for evaluating concrete quality and predicting its long-term performance. While petrographic analysis is a collective term for a series of tests, it generally involves the examination of different phases on a polished concrete section via various imaging methods like optical microscopy [1], flatbed scanning [2,3], scanning electron microscope (SEM) [4], and energy dispersive X-ray analysis (SEM-EDX) [5]. This kind of analyses has been broadly applied on concrete for crack characterization under various damaging mechanisms such as fire exposure [6,7] and alkali-silica reaction (ASR) [8][9][10], air void analysis for evaluating freeze-thaw performance [2,11], and phase quantification for aggregate [12][13][14], paste [15,16] and other components [5,[17][18][19].…”

The good, the bad and the ugly polishing: Effect of abrasive size on standardless EDS analysis of Portland cement clinker’s calcium silicates

“…The microstructural study of cementitious materials is most of the time carried out with a scanning electron microscope (SEM) using flat polished samples or fractures (Famy et al, 2002;Scrivener, 2004;Stutzman, 2012Stutzman, , 2004. Flat-polished samples offer a cross-section through the sample and allow microanalysis, typically energy dispersive spectroscopy (EDS), which is the most commonly used analytic technique for cement and concrete (Pacheco and Çopuroglu, 2016;Richardson and Groves, 1993;Wong and Buenfeld, 2006), but also supplemented in some cases by wavelength dispersive spectroscopy (WDS), commonly known as electron microprobe analyser or EMPA (Ghose et al, 1983;Ghose and Barnes, 1979;Rayment, 1986;Sarkar and Roy, 1985;Sulovský, 2015, 2012).…”

Methods for characterising the steel–concrete interface to enhance understanding of reinforcement corrosion: a critical review by RILEM TC 262-SCI

“…2 and penetration of corrosion products into the adjacent porous cement paste matrix. Quantitative methods for determining the chloride concentration via EDX have been reported elsewhere [23].…”