Study on mechanical acoustic emission sources in fresh concrete

• Autorzy: Dzaye E. D. , de Schutter G. , Aggelis D. G.

Identyfikatory

DOI

10.1016/j.acme.2017.12.004

• Języki publikacji: EN

Abstrakty

EN

Acoustic emission testing has proven very useful as a non-invasive monitoring method for several material processes. Recently several studies have emerged related to fresh concrete monitoring, as AE has the sensitivity to record waves from many different processes, even though no external load is applied to the specimens. Due to the complexity of the activity including among others formation of hydrates, settlement, water migration, early age cracking, the accumulated AE cannot be easily explained. In the present paper, two mechanisms of mechanical origin (aggregate and bubble movement through the paste) are isolated and the characteristics of their emissions are studied. Experimental results are complemented with numerical simulations to enhance the understanding due to the complexity of the wave propagation problem.

Słowa kluczowe

EN

acoustic emission; aggregate; bubble; impact; simulation

PL

emisja akustyczna; agregat; symulacja

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2018
• Tom: Vol. 18, no. 3
• Strony: 742--754
• Opis fizyczny: Bibliogr. 27 poz., fot., rys., tab., wykr.

Twórcy

autor

Dzaye E. D.

• Department of Mechanics of Materials and Constructions, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
• Magnel Laboratory for Concrete Research, Department of Structural Engineering, Ghent University, Technologiepark- Zwijnaarde 904, B-9052 Ghent, Belgium

autor

de Schutter G.

• Magnel Laboratory for Concrete Research, Department of Structural Engineering, Ghent University, Technologiepark- Zwijnaarde 904, B-9052 Ghent, Belgium

autor

Aggelis D. G.

• Department of Mechanics of Materials and Constructions, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)