Improving the Strength Characteristics of Cement Conglomerates with Directional Additives

Since the production of high-strength and ultra-high-strength artificial conglomerates is a paramount task in the development of building sciences, and the cement matrix is the main component responsible for the strength of cement-based artificial composites, increasing its strength is an urgent task. The authors consider the possibility of strengthening the cement matrix by using finely dispersed mineral additives (wollastonite, diabase, diopside and limestone), which are waste products from mining and processing industries. The studies were carried out on samples of cement stone with dimensions of 20х20х20 mm, made from cement paste of normal density. The studied finely dispersed additives were introduced in an amount of 2–11% by weight of cement. According to the results of the study of the effect of additives on the strength of the cement matrix, it was found that with the introduction of these additives, the compressive strength of the cement matrix increases. The paper substantiates the choice of mineral additives, both depending on their thermodynamic characteristics and chemical composition, and depending on their hardness. The concentration extreme dependences of the strength of the cement matrix on the type, quantity and dispersion of additives are obtained.

L.V. IL’INA, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
V.V. MOLODIN, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
N.O. GICHKO, Senior Lecturer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
A.K. TULYAGANOV, Senior Lecturer (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Novosibirsk State Architectural and Construction University (Sibstrin) (113, Leningradskaya Street, Novosibirsk, 630008, Russian Federation)

1. Akhverdieva T.A., Dzhafarov R. Influence of finely ground mineral additives on the properties of concrete. Stroitel’nye materialy [Construction Materials]. 2019. No. 3, pp. 73–76. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2019-768-3-73-76
2. Vernigorova V.N., Sadenko S.M. On the non-stationarity of physical and chemical processes occurring in a concrete mix. Stroitel’nye materialy [Construction Materials]. 2017. No. 1–2, pp. 86–89. (In Russian).
3. Nguen D.V.K., Bazhenov Yu.M., Aleksandrova O.V. Influence of quartz powder and mineral additives on the properties of high-strength concretes. Vestnik of the MSTU. 2019. Vol. 14. No. 1 (124), pp. 102–117. (In Russian). DOI: https://doi.org/10.25686/2542-114X.2020.3.7
4. Khafizova E.N., Panchenko Yu.F., Panchenko D.A. The use of technological waste from crushing rocks in the development of cement concrete compositions. Vestnik of the Siberian State Automobile and Road University. 2021. Vol. 18. No. 6 (82), pp. 790–799. (In Russian). DOI: https://doi.org/10.26518/2071-7296-2021-18-6-790-799
5. Rakhimov R.Z. Building complex, ecology and mineral binders. Izvestiya vysshikh uchebnykh zavedenii. Stroitel’stvo. 2022. No. 2 (758), pp. 5–15. (In Russian). DOI: 10.32683/0536-1052-2022-758-2-5-15
6. Berra M., Mangialardi T. , Carassiti F. , Paolini A.E. Effects of nanosilica addition on workability and compressive strength of Portland cement pastes. Construction and Building Materials. 2012. Vol. 35, pp. 666–675. DOI: 10.1016/j.conbuildmat.2012.04.132
7. Ilina L.V., Mukhina I.N., Semenova M.M. Hardening cement conglomerates by mining industries waste. Solid State Phenomena. 2021. No. 316, pр. 1061–1066. DOI: 10.4028/www.scientific.net/SSP.316.1061
8. Ilina L., Mukhina I. and Teplov A. Modeling of Cement Activity Increase by Dispersed Mineral. AIP Publishing. Advanced Materials in Technology and Construction/ Proceedings of the II All-Russian Scientific Conference of Young Scientists «Advanced Materials in Technology and Construction», 2016. Vol. 1698. C. 070001. DOI: 10.1063/1.4937871
9. Stefanidou M., Papayianni I.Influence of nano-SiO2 on the cement pastes. Composites Part B: Engineering. 2012. Vol. 43, No. 6, pр. 2706–2710. DOI: 10.1016/j.compositesb.2011.12.015
10. Nadeem A., Shazim Ali Memon, Tommy Yiu Lo. Mechanical performance, durability, qualitative and quantitative analysis of microstructure of fly ash and Metakaolin concrete at elevated temperatures. Construction and Building Materials. 2013. Vol. 38, pр. 338–347. DOI: 10.1016/j.conbuildmat.2012.08.042
11. State report “On the state and protection of the environment of the Russian Federation in 2018”. Moscow: Ministry of Natural Resources of Russia; NIA-Priroda. 2019. 847 p. (In Russian).
12. Ilina L., Mukhina I. Dry Building Mixrure with Complex Dispersed Mineral Additives. AOP IOP Conference Series: Materials Science and Engineering. 2020. Vol. 953, Р. 012036. DOI: 10.1088/1757-899X/953/1/012036
13. Lesovik V.S., Fedyuk R.S., Liseitsev Yu.L., Panarin I.I., Voronov V.V. Influence of composition on the properties and structure of modified cement composites // Stroitel’nye materialy [Construction Materials]. 2022. No. 9, pp. 39–49. (In Russian). DOI: 10.31659/0585-430X-2022-806-9-39-49
14. Kharchenko A.I., Alekseev V.A., Kharchenko I.Ya., Bazhenov D.A. Structure and properties of fine-grained concretes based on composite binders. Vestnik of the MSTU. 2019. Vol. 14. Iss. 3, pp. 322–331. (In Russian). DOI: 10.22227/1997-0935.2019.3.322-331
15. Khozin V.G., Tsyganova E.A. The role of the construction industry in the implementation of the federal project “Circular Economy”. Ekspert: teoriya i praktika. 2023. No. 1 (20), pp. 147–159. (In Russian). DOI: 10.51608/26867818_2023_1_147
16. Volodchenko A.A., Zagorodnyuk L.Kh., Prosolova E.O., Akhmed A.A., Kulik N.V. The problem of rational nature management. Vestnik of the Belgorod State Technological University named after V.G. Shukhov. 2014. No. 6, pp. 7–10. (In Russian).
17. Kopanitsa N.O., Dem’yanenko O.V., Kulikova A.A. Complex additives based on secondary resources for the modification of cement compositions. Izvestiya of the Tomsk Polytechnic University theta. Engineering of georesources. 2023. Vol. 334. No. 1, pp. 136–144. (In Russian). DOI: 10.18799/24131830/2023/1/4045
18. Trofimov B.Y., Mahmudov A.M. The structure and properties of hardened cement paste with modifiers. IOP Conference Series: Materials Science and Engineering. Сер. “International Conference on Construction, Architecture and Technosphere Safety, ICCATS 2020 – Number 2”. 2020. Vol. 962, pp. 022011. DOI: 10.1088/1757-899X/962/2/022011
19. Shahova L.D., Chernositova E.S., Schelokova L.S., Uhaneva N.G. Influence of technological additives on the characteristics of cement powders. Digital Technologies in Construction Engineering. Selected Papers. Сер. “Lecture Notes in Civil Engineering”. 2022, pp. 259–265. DOI: 10.1007/978-3-030-81289-8_33
20. Kozlova V.K., Vol’f A.V., Manokha A.M., Kishitskii A.A. The role of carbonate additives in the processes of hydration and hardening of composite Portland cements. Polzunovskii al’manakh. 2021. No. 1, pp. 74–76. (In Russian).
21. Ilina L., Kudyakov A., Rakov M. Aerated dry mix concrete for remote northern territories. Magazine of Civil Engineering. 2022. No. 5 (113). Article No. 11310. DOI: 10.34910/MCE.113.10