A review on microstructural characterization of cement-based materials by AC impedance spectroscopy. (July 2019)

• Record Type: Journal Article
• Authors: Hu, Xiang; Shi, Caijun; Liu, Xiaojin; Zhang, Jiake; de Schutter, Geert
• Is Part Of: Cement & concrete composites. Volume 100(2019)
• Page Start: 1
• Page End: 14
• Publication Date: 2019-07
• Subjects: AC impedance spectroscopy -- Equivalent circuit model -- Hydration -- Microstructure -- Chloride induced corrosion; Composite-reinforced concrete -- Periodicals; Concrete -- Periodicals; Composite materials -- Periodicals; Composites de ciment -- Périodiques; Béton -- Périodiques; Composites -- Périodiques; Béton léger -- Périodiques; Cement composites; Composite materials; Composite-reinforced concrete; Concrete; Lightweight concrete; Periodicals; Electronic journals; 620.135
• DOI: 10.1016/j.cemconcomp.2019.03.018
• Languages: English
• ISSNs: 0958-9465

Abstract

Abstract: As a non-destructive method, AC impedance spectroscopy is a promising technique for the characterization of cement-based materials owing to its advantages in real time monitoring. In this paper, the equivalent circuit models in publications applied for different cement-based systems are summarized. The determinations of hydration properties, microstructural changes and chloride induced corrosion parameters of cement-based materials by AC impedance spectroscopy measurements are reviewed. With some appropriate models, the AC impedance parameters can be applied to characterize microstructure and interfacial properties of cement-based materials. The experimental condition control and data analyses are discussed. Some improvements for measurement device and development of equivalent circuit models for different kinds of binding materials are needed.