Monitoring of concrete’s setting process through wave dispersion

Author(s): S.N. Iliopoulos, L. De Smet, D.G. Aggelis
Paper category: Proceedings
Book title: Proceedings of the 2nd International RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures Volume 1
Editor(s): Stéphanie Staquet and Dimitrios Aggelis
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 405-410
Total Pages: 6
Language : English

Abstract: The final properties of concrete strongly depend on the fresh state of the material, making therefore, the monitoring of the curing process imperative. Ultrasound has been used for decades showing sensitivity to the development of hydration and stiffness. However, usually researchers focus only on “pulse velocity” measured by the transit time of the first cycle of a wave propagating through the tested sample. In this paper, pulse velocity is replaced by phase velocity expressed as a function of frequency in an attempt to numerically and experimentally estimate setting time and define the degree of heterogeneity responsible for the dispersive trends.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00

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