The effect of micro-silica on the microscopic features of the UHPC composite and its inter-facial transition zone

0507093 - ÚTAM 2020 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Hrbek, Vladimír - Prošek, Z. - Chylík, R. - Vráblík, L.
The effect of micro-silica on the microscopic features of the UHPC composite and its inter-facial transition zone.
Acta Polytechnica CTU Proceedings. Vol. 15. Prague: Czech Technical University in Prague, 2018 - (Padevět, P.), s. 31-35. ISBN 978-80-01-06457-3. E-ISSN 2336-5382.
[Conference Nano and Macro Mechanics 2018 /9./. Prague (CZ), 20.09.2018-20.09.2018]
Institucionální podpora: RVO:68378297
Klíčová slova: high performance concrete * indentation * spectral deconvolution SEM * image analysis * ITZ
Obor OECD: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics
https://doi.org/10.14311/APP.2018.15.0031

The uplift of concrete overall macroscopic performance by way of alternative additives is commonly used technique. In case of ultra high performance concrete (UHPC), micro-silica is added to the mixture as a micro-filler to the structure of cement binder. As a result, the cementitious matrix macro-mechanical performance is elevated. This paper is aimed on the UHPC micro-scale enhancement by different micro-silica additive content in the mixture. More closely, the study investigate the impact of the micro-silica on the inter-facial transition zone (ITZ) between the binder matrix and basaltic aggregate.
Trvalý link: http://hdl.handle.net/11104/0298170