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MICROSTRUCTURAL CHARACTERISATION OF CEMENT-BASED MATERIALS (CBM) USING THE NUMERICAL SIMULATION OF ULTRASONIC PROPAGATION



Author(s): José Vicente Fuente (1), Sreejith Nanukuttan (2), Jorge Gosalbez (3), Neil Campbell (4)
Paper category: Proceedings
Book title: SynerCrete’18 International Conference on Interdisciplinary Approaches for Cement-based Materials and Structural Concrete
Editor(s): Miguel Azenha, Dirk Schlicke, Farid Benboudjema, Agnieszka Jędrzejewska
ISBN: 978-2-35158-202-2
e-ISBN: 978-2-35158-203-9
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 737-742
Total Pages: 6
Language : English


Abstract: This article reports the developments made during a short term scientific mission (STSM) funded by COST Action TU1404. The aim was to develop a refined methodology for the microstructural characterisation of cement-based materials (CBM) using the numerical simulation of ultrasonic propagation. Images that represent the microstructure of cement paste and mortars were created using the uniform and gaussian functions.
Further the attenuation-dependence of the ultrasonic pulse for the wide range of microstructures has been tested since from a set of Images of Microstructure (IoM) as an output of the image generation process. This IoM were the input for the ultrasonic modelling to obtain some ultrasonic parameters that they characterise each microstructure. This theoretical procedure has been used to simulation a wide range of CBM microstructures. The microstructural parameters considered in the analysis were the porosity (two size ranges), grain number and size and interfacial zone modelling.
Finally, it is planned to integrate the findings from the previous objectives to develop a refined methodology for microstructural characterization of CBM using ultrasonic pulse. This study has been funded by COST Action through a Scientific Short Time Mission (STSM), numbered by 38439, being supported the main author of this paper for the Congress and being part of the dissemination activities of this STSM.


Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00


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