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Title: EVALUATION OF THE INITIAL VOLUME STABILITY OF CURRENT CEMENTS
EVALUATION OF THE INITIAL VOLUME STABILITY OF CURRENT CEMENTS

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Bozena Dohnalkova; Jiri Grosek; Tomas Zavrel; Theodor Stanek
10.5593/sgem2024/6.1/s26.35
10.5593/sgem2024/6.1
1314-2704
978-619-7603-74-3
English
24
6.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Green Buildings Technologies and Materials
In the context of the pressure to reduce the production of CO2 emissions in cement manufacturing, cement plants are significantly changing their product portfolios. Changes in the composition of cement products also lead to changes in their properties. This paper focuses on the monitoring and non-standard evaluation of initial volume stability. Several different types of currently used cements produced in various cement plants in the Czech Republic and Slovakia in 2022 and 2023 were tested using the “initial volume stability test”. The test results included in this article describe defects forming in the test samples at the initial stage of the cement setting and hardening. The test can be used to observe the possible differences in the properties of the same cement types from different sources, as well as the variability in the properties of one cement type within a production batch.
[1] Zhutovsky, S.; Kovler, S. Chemical shrinkage of high-strength/high-performance cementitious materials. Int. Rev. Civ. Eng. 2010, 1, 110–118.
[2] Charron, J.P.; Marchand, J.; Bissonnette, B. Early-age deformations of hydrating cement systems: Comparison of linear and volumetric shrinkage measurements. In Proceedings of the International Conference on Early Age Cracking in Cementitious Systems (EAC’01); Bentur, A., Ed.; RILEM Publications: Haifa, Israel, 12 March 2001
[3] Hammer, T.; Heese, C. Early age chemical shrinkage and autogenous deformation of cement pastes. In Proceedings of the 2nd International Research Seminar on Self-Desiccation and Its Importance in Concrete Technology; Persson, B., Fagerlund, G., Eds.; Lund University: Lund, Sweden, 1999; pp. 7–13.
[4] Nevosad, Z.: Aggresive external Conditions and Durability of Concrete, Failures of concrete structures, RILEM, Strbske Pleso, 1993.
[5] Nevosad, Z., Chupik, V.: Cold recycling of pavement, X. seminar Ivana Poliacka, ISBN 80-969365-3-0, Slovenska cestna spolocnost a Stavebna fakulta STU Bratislava, 2005, str. 121-127.
[6] Nevosad, Z.: Development of secondary admixed cements with increased volume stability, BETON 2019, ISBN 978-80-8076-138-7, str.81-87, JAGA GROUP, s.r.o. Bratislava, Vysoke Tatry – Strbske Pleso, 2019.
[7] Grosek, J. Nevosad, Z., Dohnalkova, B., Zavrel, T., Methodology for testing the volume stability of hydraulic binders. 2023. Certified methodology UDS_223, Transport Research Centre, v.v.i.
This article was produced with the financial support of the Ministry of Transport within the programme of long-term conceptual development of research institutions.
conference
https://doi.org/10.5593/sgem2024/6.1/s26.35
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
238-246
1 - 7 July, 2024
website
9803
cement, volume stability, defects, concrete, mortar

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