Formation of the strength of fine-grained concrete based on modified slag Portland cement
DOI:
https://doi.org/10.15587/1729-4061.2023.289929Keywords:
fine-grained concrete, Portland slag cement, hydration, concrete modification, surfactants, water activationAbstract
The object of research is fine-grained concrete on slag portland cement. Owing to the significant content of metallurgical industry waste in its composition, slag portland cement belongs to ecologically acceptable products. However, the insufficient rate of formation of its structure and, as a result, the main quality indicator, which is compressive strength, limits the field of use of slag portland cement. Therefore, in the studies, the goal was to increase the speed of formation of the strength of fine-grained concrete made on slag portland cement. The studies of the influence of modification of slag portland cement with water, activated by the use of the hydrophobic hydration mechanism, established the factors affecting the speed of formation and the value of compressive strength of fine-grained concrete made on slag portland cement. It has been proven that these factors include the type and amount of applied water nanomodifiers, as well as the type and amount of fine concrete aggregate. The analysis of the study results confirmed that the introduction of water activated by the mechanism of hydrophobic hydration into concrete in ultra-small doses significantly increases the rate of formation of concrete strength. Given this, the strength of the resulting modified fine-grained concrete based on slag portland cement at the age of 2 days exceeds the strength of the similar concrete without additives by 60 %, and at the age of 210 days – by 25 %. This allows us to assert the effectiveness of the identified mechanism of modification of slag portland cement. Thus, there are reasons to assert the possibility of targeted regulation of the processes of forming a strong structure of fine-grained concrete based on slag portland cement by using water activated by the mechanism of hydrophobic hydration
References
- Kostyuk, T., Vinnichenko, V., Plugin, A., Borziak, O., Iefimenko, A. (2021). Physicochemical studies of the structure of energy-saving compositions based on slags. IOP Conference Series: Materials Science and Engineering, 1021 (1), 012016. doi: https://doi.org/10.1088/1757-899x/1021/1/012016
- Shishkina, A., Shishkin, A. (2020). Application of the easy concentration effect in concrete technology. IOP Conference Series: Materials Science and Engineering, 907 (1), 012038. doi: https://doi.org/10.1088/1757-899x/907/1/012038
- The new concrete. Available at: https://www.encosrl.it/the-new-concrete/
- Schmidt, M. (2006). Von der Nanotechnologie zum Ultra - Hochfesten Beton. 16 Intern. Baustoff. Konf. Weimar, 2, 1405–1416.
- Tevyashev, A. D., Shitikov, E. S. (2009). O vozmozhnosti upravleniya svoystvami tsementobetonov s pomosch'yu nanomodifikatorov. Eastern-European Journal of Enterprise Technologies, 4 (7 (40)), 35–40. Available at: https://journals.uran.ua/eejet/article/view/22048
- Belichenko, O. A., Tolmachov, S. M. (2020). Research of physical and chemical properties of aqueous suspensions of microfillers with superplasticators. Resursoekonomni materialy, konstruktsii, budivli ta sporudy, 38, 66–77. Available at: http://nbuv.gov.ua/UJRN/rmkbs_2020_38_7
- Storchai, N. S., Savin, Yu. L., Volnianska, I. P. (2020). Scientific and technical justification of use of mineral disperse systems of technogenic origin. Resursoekonomni materialy, konstruktsii, budivli ta sporudy, 38, 277–282. Available at: http://nbuv.gov.ua/UJRN/rmkbs_2020_38_31
- Shishkina, A., Shishkin, A. (2018). Research into effect of complex nanomodifiers on the strength of fine-grained concrete. Eastern-European Journal of Enterprise Technologies, 2 (6 (92)), 29–33. doi: https://doi.org/10.15587/1729-4061.2018.127261
- Shishkin, A., Netesa, M., Scherba, V. (2017). Effect of the iron-containing filler on the strength of concrete. Eastern-European Journal of Enterprise Technologies, 5 (6 (89)), 11–16. doi: https://doi.org/10.15587/1729-4061.2017.109977
- Shishkin, A., Netesa, N., Netesa, A. (2019). Determining the rational compositions of low-strength concretes. Eastern-European Journal of Enterprise Technologies, 1 (6 (97)), 47–52. doi: https://doi.org/10.15587/1729-4061.2019.156599
- Shyshkin, A. (2023). Increasing the Speed of Formation of the Structure of Fine-Grained Concrete and its Strength. Key Engineering Materials, 953, 69–74. doi: https://doi.org/10.4028/p-itx1lu
- Erdoǧdu, Ş. (2000). Compatibility of superplasticizers with cements different in composition. Cement and Concrete Research, 30 (5), 767–773. doi: https://doi.org/10.1016/s0008-8846(00)00229-5
- Shyshkina, A., Shyshkin, A. (2021). Fine-Grained Concrete for Repair and Restoration of Building Structures. Materials Science Forum, 1038, 317–322. doi: https://doi.org/10.4028/www.scientific.net/msf.1038.317
- Shyshkina, A., Shyshkin, A. (2022). Influence of Temperature and Humidity of the Environment where the Concrete Hardening Takes over on the Efficiency of Surface Microdosis Application. Materials Science Forum, 1066, 169–174. doi: https://doi.org/10.4028/p-b74fx4
- Shishkina, A. (2017). Study of change in the deformation-strength properties of nanomodified fine-grained concretes over time. Eastern-European Journal of Enterprise Technologies, 3 (6 (87)), 50–54. doi: https://doi.org/10.15587/1729-4061.2017.101032
![Formation of the strength of fine-grained concrete based on modified slag Portland cement](https://journals.uran.ua/public/journals/3/submission_289929_328208_coverImage_en_US.png)
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Aleхsandra Shіshkina, Illia Piskun
![Creative Commons License](http://i.creativecommons.org/l/by/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution 4.0 International License.
The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.
A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.