Evaluation of alkali–silica reaction damage in concrete using linear and nonlinear resonance techniques. (11th October 2021)

• Record Type: Journal Article
• Authors: Malone, Clayton; Zhu, Jinying; Hu, Jiong; Snyder, April; Giannini, Eric
• Is Part Of: Construction & building materials. Volume 303(2021)
• Publication Date: 2021-10-11
• Subjects: Nonlinear resonance -- NDT -- Alkali–silica reaction (ASR) -- Concrete; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2021.124538
• Languages: English
• ISSNs: 0950-0618

Abstract

Abstract: In this study, the initiation and development of alkali–silica reaction (ASR) in concrete prisms containing reactive coarse (RCA) and reactive fine (RFA) aggregates were monitored over one year using linear and nonlinear resonance techniques. Although the linear resonance test could detect initiation and development of ASR damage in RCA specimens, it failed in the RFA specimens. Petrographic analysis confirmed the presence of early-stage ASR damage and the presence of different microcracking patterns in the RFA and RCA specimens, which may explain differences in the linear resonance data. For both RCA and RFA specimens, the nonlinear resonance test results were able to detect the initiation of ASR damage and showed a strong correlation with the ASR expansion for all specimens from different mix designs. The results demonstrate the high sensitivity of the nonlinear resonance test and its potential for quantitative evaluation of the ASR damage state of concrete specimens without a baseline measurement. Highlights: Concrete prisms with ASR damage were monitored for more than one year. Petrographic analysis shows different crack patterns in RCA and RFA specimens. Nonlinear resonance parameter shows a good correlation with ASR expansion. Linear resonance frequency is insensitive to isolated microcracks in RFA specimens.