Wideband Microwave Characterization of Alkali-Silica Reaction (ASR) Gel in Cement-Based Materials
Alkali-silica reaction (ASR) and its effect on cement-based infrastructure is an ongoing concern for ensuring long-term performance. However, it remains challenging to identify ASR damage in concrete before damage progresses and ASR gel staining, expansion and cracking compromise serviceability. This research demonstrates that microwave materials characterization is an effective method by which ASR gel in cement-based materials can be detected and that materials containing ASR gel can be distinguished from those without. Further, this work provides a basis for the development of field evaluation techniques and lab-based investigations to better understand the relationships between concrete composition and ASR damage propagation.
K. M. Donnell et al., "Wideband Microwave Characterization of Alkali-Silica Reaction (ASR) Gel in Cement-Based Materials," Materials Letters, vol. 90, pp. 159-161, Elsevier, Jan 2013.
The definitive version is available at http://dx.doi.org/10.1016/j.matlet.2012.09.017
Electrical and Computer Engineering
Keywords and Phrases
Cements; Characterization; Concretes; Dielectric Properties; Materials Properties; Materials Testing; Nondestructive Examination; Silica; Alkali-Silica Reaction; Cement Based Material; Concrete Composition; Long Term Performance; Materials Characterization; Microwave Materials; Microwave Non-Destructive Testing; Wideband Microwaves; Dielectric Materials; Alkali-Silica Reaction (ASR); Cement-Based Materials; Microwave Nondestructive Testing
International Standard Serial Number (ISSN)
Article - Journal
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