AbstractAbout AuthorsReferences
The possibilities of optimizing technological and prescription factors and external influences under the conditions of pressing products from fine-grained concrete are considered in detail. It is shown that the tasks of improving the quality of these products are of particular relevance. It is established that moisture shrinkage is the most important and problematic property of modern concrete of modified structure, reducing their quality. The article shows that optimal construction and technical properties are obtained in the range of V/T ratios from 0.12 to 0.16, which characterizes the kinetics of hardening of fine-grained concrete pressed to the same density. The influence of the selected components and technological factors on the processes of early structure formation of cement systems (starting from the moment of mixing the components) on the balance of internal (film wedging and capillary tightening) forces in the system in a wide range of water-cement ratios was studied. The results obtained provide the necessary guidelines for specialists and consumers of pressed products.
M.A. GONCHAROVA1, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
R.E. AGAMOV1, Engineer (smidt48@mail@ru),
A.G. ZAEVA1, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
G.M. BUTUZOV1, Engineer (smidt48@mail@ru);
P.V. MONASTYREV2, Doctor of Sciences (This email address is being protected from spambots. You need JavaScript enabled to view it.)
R.E. AGAMOV1, Engineer (smidt48@mail@ru),
A.G. ZAEVA1, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
G.M. BUTUZOV1, Engineer (smidt48@mail@ru);
P.V. MONASTYREV2, Doctor of Sciences (This email address is being protected from spambots. You need JavaScript enabled to view it.)
1 Lipetsk State Technical University (30 Moskovskaya Street, Building B, Lipetsk, 398005, Russian Federation)
2 Tambov State Technical University (106/5 Sovetskaya Street, Tambov, 392000, Russian Federation)
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11. Certificate of state registration of the computer program No. 2023610509 RF. Program for the selection of the composition of lightweight concrete without additives. Goncharova M.A., Yudina A.O., Dergunova E.S. Declared 12.27.2022. (In Russian).
12. Certificate of state registration of the computer program No. 2023618934 RF. Program for calculating the composition of concrete of various structures. Goncharova M.A., Myakiev A.H., Dergunova E.S. Declared 04.25.2023.
13. Goncharova M.A., Krokhotin V.V., Ivashkin A.N. The influence of fiber reinforcement on the properties of the selfcompacting concrete mix and concrete. Solid State Phenomena. 2020. Vol. 299, pp. 112–117. DOI 10.4028/www.scientific.net/SSP.299.112
14. Smirnov V.A., Korolev E.V. Building materials as disperse systems: multiscale modeling with dedicated software. Stroitel’nye Materialy [Construction Materials]. 2019. No. 1–2, pp. 43–53. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2019-767-1-2-43-53
15. Strokova V.V., Netsvet D.D., Nelubova V.V., Serenkov I.V. Properties of composite binder based on nanostructured suspension. Stroitel’nye Materialy [Construction materials]. 2017. No. 1–2, pp. 50–54. . (In Russian). DOI: https://doi.org/10.31659/0585-430X-2017-745-1-2-50-54
16. Shmit’ko E.I., Verlina N.A. Press-molding processes and their influence on adobe brick quality. Stroitel’nye Materialy [Construction Materials]. 2015. No. 10, pp. 5–7. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2015-730-10-5-7
17. Shmit’ko E.I., Bel’kova N.A., Makushina Yu.V. Influence of surfactants on humid shrinkage of concretes. Stroitel’nye Materialy [Construction Materials]. 2018. No. 4, pp. 48–51. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2018-758-4-48-51
19. Vernigorova V.N., Sadenko S.M. Concrete mix structure and role of water in its physical-chemical transformation in concrete. Stroitel’nye Materialy [Construction Materials]. 2018. No. 4, pp. 52–55. (In Russian).DOI: https://doi.org/10.31659/0585-430X-2018-758-4-52-55
2. Erofeev V.T., Maksimova I.N., Tarakanov O.V., Sanyagina Ya.A., Erofeeva I.V., Suzdaltsev O.V. Decorative and finishing powder-activated concretes with a granular surface texture. Stroitel’nye Materialy [Construction Materials]. 2022. No. 10, pp. 25–40. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2022-807-10-25-40
3. Ayzenshtadt A.M., Frolova M.A., Danilov V.E., Drozdyuk T.A., Malygina M.A. Modification transformations of saponite-containing material during mechanical grinding. Stroitel’nye Materialy [Construction Materials]. 2023. No. 7, pp. 54–59. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2023-815-7-54-59
4. Inozemtsev A.S., Korolev E.V. Comparative analysis of influence of nanomodification and micro-dispersed reinforcement on the process and parameters of destruction of high-strength lightweight concrete. Stroitel’nye Materialy [Construction Materials]. 2017. No. 7, pp. 11–15. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2017-750-7-11-15.
5. Kaprielov S.S., Sheinfeld A.V., Dondukov V.G. Cements and additives for producing high-strength concretes. Stroitel’nye Materialy [Construction Materials]. 2017. No. 11, pp. 4–10. (In Russian). DOI:https://doi.org/10.31659/0585-430X-2017-754-11-4-10
6. Gryzlov V.S., Zavialova D.V. Screenings of crushing of broken slag as an efficient component of concrete. Stroitel’nye Materialy [Construction Materials]. 2018. No. 5, pp. 40–43. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2018-759-5-40-43
7. Agamov R.E., Goncharova M.A., Mraev A.V. Steelmaking slags as an effective raw material in road construction. Stroitel’nye Materialy [Construction Materials]. 2023. No. 1–2, pp. 56–60. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2023-810-1-2-56-60
8. Аgamov R.E., Goncharova M.A., Pachin A.R. High-strength fiber-reinforced concrete in structures for general construction and special purposes. Stroitel’nye Materialy [Construction Materials]. 2023. No. 1–2, pp. 39–43. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2023-810-1-2-39-43
9. Al-Surrayvi H.G.H, Goncharova M.A., Zaeva A.G. Synthesis of composites on the basis of local raw materials under the influence of aggressive environment. Stroitel’nye Materialy [Construction Materials]. 2021. No. 5, pp. 69–74. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2021-791-5-69-74
10. Goncharova M.A., Komarichev A.V., Karaseva O.V. Composite injection materials with two-stage magnetic processing systems hardening. Stroitel’stvo i rekonstruktsiya. 2017. No. 6 (74), pp. 114–120. (In Russian).
11. Certificate of state registration of the computer program No. 2023610509 RF. Program for the selection of the composition of lightweight concrete without additives. Goncharova M.A., Yudina A.O., Dergunova E.S. Declared 12.27.2022. (In Russian).
12. Certificate of state registration of the computer program No. 2023618934 RF. Program for calculating the composition of concrete of various structures. Goncharova M.A., Myakiev A.H., Dergunova E.S. Declared 04.25.2023.
13. Goncharova M.A., Krokhotin V.V., Ivashkin A.N. The influence of fiber reinforcement on the properties of the selfcompacting concrete mix and concrete. Solid State Phenomena. 2020. Vol. 299, pp. 112–117. DOI 10.4028/www.scientific.net/SSP.299.112
14. Smirnov V.A., Korolev E.V. Building materials as disperse systems: multiscale modeling with dedicated software. Stroitel’nye Materialy [Construction Materials]. 2019. No. 1–2, pp. 43–53. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2019-767-1-2-43-53
15. Strokova V.V., Netsvet D.D., Nelubova V.V., Serenkov I.V. Properties of composite binder based on nanostructured suspension. Stroitel’nye Materialy [Construction materials]. 2017. No. 1–2, pp. 50–54. . (In Russian). DOI: https://doi.org/10.31659/0585-430X-2017-745-1-2-50-54
16. Shmit’ko E.I., Verlina N.A. Press-molding processes and their influence on adobe brick quality. Stroitel’nye Materialy [Construction Materials]. 2015. No. 10, pp. 5–7. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2015-730-10-5-7
17. Shmit’ko E.I., Bel’kova N.A., Makushina Yu.V. Influence of surfactants on humid shrinkage of concretes. Stroitel’nye Materialy [Construction Materials]. 2018. No. 4, pp. 48–51. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2018-758-4-48-51
19. Vernigorova V.N., Sadenko S.M. Concrete mix structure and role of water in its physical-chemical transformation in concrete. Stroitel’nye Materialy [Construction Materials]. 2018. No. 4, pp. 52–55. (In Russian).DOI: https://doi.org/10.31659/0585-430X-2018-758-4-52-55
For citation: Goncharova M.A., Agamov R.E., Zaeva A.G., Butuzov G.M., Monastyrev P.V. Mechanisms for the formation of the structure and properties of pressed fine-grained concretes. Stroitel’nye Materialy [Construction Materials]. 2023. No. 8, pp. 48–53. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2023-816-8-48-53