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Monitoring early-age acoustic emission of cement paste and fly ash paste

Evin Dildar Dzaye, Geert De Schutter (UGent) and Dimitrios G. Aggelis
(2020) CEMENT AND CONCRETE RESEARCH. 129.
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Abstract
In this study, a combined approach of several monitoring techniques was applied to allow correlations between the AE activity and related processes such as shrinkage and settlement evolution, capillary pressure and temperature development in fresh cementitious media. AE parameters related to frequency, energy, and cumulative activity which exhibit sensitivity to the particle size distribution of cement paste are compared with inert fly ash (FA) leading to isolation of the mechanical sources from the chemical ones. Characterization of the origin of different processes occurring in cement paste during hydration is complex. Although acoustic emission (AE) monitoring has been used before, a qualitative relation between the microstructural formation or other early-age processes and the number or parameters of AE signals has not been established. The high sensitivity of AE enables the recording of elastic waves within the cementitious material, allowing the detection of even low-intensity activities.
Keywords
PORTLAND-CEMENT, HYDRATION, CONCRETE, CRACKING, CLASSIFICATION, BEHAVIOR, SIGNALS, IMPACT, PULSE, Acoustic emission, Settlement, Capillary pressure, Portland cement, hydration, Fly ash

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MLA
Dzaye, Evin Dildar, et al. “Monitoring Early-Age Acoustic Emission of Cement Paste and Fly Ash Paste.” CEMENT AND CONCRETE RESEARCH, vol. 129, 2020, doi:10.1016/j.cemconres.2019.105964.
APA
Dzaye, E. D., De Schutter, G., & Aggelis, D. G. (2020). Monitoring early-age acoustic emission of cement paste and fly ash paste. CEMENT AND CONCRETE RESEARCH, 129. https://doi.org/10.1016/j.cemconres.2019.105964
Chicago author-date
Dzaye, Evin Dildar, Geert De Schutter, and Dimitrios G. Aggelis. 2020. “Monitoring Early-Age Acoustic Emission of Cement Paste and Fly Ash Paste.” CEMENT AND CONCRETE RESEARCH 129. https://doi.org/10.1016/j.cemconres.2019.105964.
Chicago author-date (all authors)
Dzaye, Evin Dildar, Geert De Schutter, and Dimitrios G. Aggelis. 2020. “Monitoring Early-Age Acoustic Emission of Cement Paste and Fly Ash Paste.” CEMENT AND CONCRETE RESEARCH 129. doi:10.1016/j.cemconres.2019.105964.
Vancouver
1.
Dzaye ED, De Schutter G, Aggelis DG. Monitoring early-age acoustic emission of cement paste and fly ash paste. CEMENT AND CONCRETE RESEARCH. 2020;129.
IEEE
[1]
E. D. Dzaye, G. De Schutter, and D. G. Aggelis, “Monitoring early-age acoustic emission of cement paste and fly ash paste,” CEMENT AND CONCRETE RESEARCH, vol. 129, 2020.
@article{8659782,
  abstract     = {{In this study, a combined approach of several monitoring techniques was applied to allow correlations between the AE activity and related processes such as shrinkage and settlement evolution, capillary pressure and temperature development in fresh cementitious media. AE parameters related to frequency, energy, and cumulative activity which exhibit sensitivity to the particle size distribution of cement paste are compared with inert fly ash (FA) leading to isolation of the mechanical sources from the chemical ones. Characterization of the origin of different processes occurring in cement paste during hydration is complex. Although acoustic emission (AE) monitoring has been used before, a qualitative relation between the microstructural formation or other early-age processes and the number or parameters of AE signals has not been established. The high sensitivity of AE enables the recording of elastic waves within the cementitious material, allowing the detection of even low-intensity activities.}},
  articleno    = {{105964}},
  author       = {{Dzaye, Evin Dildar and De Schutter, Geert and Aggelis, Dimitrios G.}},
  issn         = {{0008-8846}},
  journal      = {{CEMENT AND CONCRETE RESEARCH}},
  keywords     = {{PORTLAND-CEMENT,HYDRATION,CONCRETE,CRACKING,CLASSIFICATION,BEHAVIOR,SIGNALS,IMPACT,PULSE,Acoustic emission,Settlement,Capillary pressure,Portland cement,hydration,Fly ash}},
  language     = {{eng}},
  pages        = {{11}},
  title        = {{Monitoring early-age acoustic emission of cement paste and fly ash paste}},
  url          = {{http://doi.org/10.1016/j.cemconres.2019.105964}},
  volume       = {{129}},
  year         = {{2020}},
}
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