Structural-phenomenological analysis of interrelation of microstructure indexes and properties of set cement systems
Abstract
The study of the chemical and physical processes of solidification of polydisperse cement systems until now is based predominantly on empirical approaches. The phenomenological analysis of the interrelation of structure coefficients of set cement systems at the microlevel with their physical-mechanical properties was proposed as one of scientificallypractical approaches to control of physical and chemical processes of structure formation of controlled-quality concretes.
The comparison of the quantity indicators of a microstructure of cement rock and its functional properties can be used for the estimation of structural modifications with a variation in the composition of cement systems. The aim of the study was to obtain quantitative data of the structural-phenomenological analysis of set cement systems for determination of interrelation of microstructure indexes with their physical-mechanical properties. For the analysis of the structure of cement systems we used fractal geometry and the theory of passing (percolation)-based methods as well as modern modelling methods and scanning electronic and atomic-power microscopy. Fractal index D and micro-coarseness index S were used for a quantitative estimation of the microstructure of cement rock obtained without an additive and with an organomineral additive. These indexes were compared with the properties of cement rock determined during standard physical-mechanical trials.
The calculation of microstructure indicators and determination of the optimal content of the components of the organomineral additive allowed increasing the understanding of the fractal-cluster mechanism of self-organization of cement systems, taking into account the topology of particle distribution. The interrelation between the D and S indicators, compressive resistance and the density of the cement stone was shown. The higher fractal parameter and a relatively low level of micro-coarseness were indicators of the material with improved physical-mechanical properties. The monitoring of changes of D and S indicators can be used to control the structural formation processes of cement systems
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Kaprielov S. S., Sheinfeld A. V., Dondukov V. G. Cements and additives for producing high-strength concretes. Stroitel’nye materialy = Construction Materials. 2017;11. 4–10. (In Russ., abstract in Eng.). https://doi.org/10.31659/0585-430X-2017-754-11-4-10 https://www.elibrary.ru/item.asp?id=30744332
Management of technology processes, structure and properties of concrete. E. M. Chernyshov, E. I. Shmit’ko (eds.). Voronezh. VGASU Publ; 2002. 344 p. (In Russ.)
Tarakanov O. V., Akchurin T. K., Utyugova E. S. Efficiency of application of integrated organomineral additives for concretes. Vestnik Volgogradskogo gosudarstvennogo arhitekturno-stroiteľnogo universiteta. Seriya: Stroiteľstvo i arhitektura = Bulletin of Volgograd State University of Architecture and Civil Engineering.Series: Civil Engineering and Architecture. 2020;1(78): 174–181. (In Russ., abstract in Eng.). Available at: https://www.elibrary.ru/item.asp?id=42737922
Lesovik V. S., Fediuk R. S. New generation composites for special facilities. Stroitel’nye materialy = Construction Materials. 2021;3: 9–17. (In Russ., abstract in Eng.). https://doi.org/10.31659/0585-430X-2021-789-3-9-17
Nelyubova V. V., Usikov S. A., Strokova V. V., Netsvet D. D. Composition and properties of selfcompacting concrete using a complex of modifiers. Stroitel’nye materialy = Construction Materials. 2021;12: 48–54. (In Russ., abstract in Eng.). https://doi.org/10.31659/0585-430X-2021-798-12-48-54
Svintsov A. P., Abbas Abdulhussein Abd Noor, Abbas Abdel-Sater, Sorokin A. N. Influence of nanomodified additives on the mobility of concrete mixture. Stroitel’nye materialy = Construction materials. 2020;7: 54–59. (In Russ., abstract in Eng.). https://doi.org/10.31659/0585-430X-2020-782-7-54-59
Hagverdiyeva T. A., Jafarov R. Impact of fine ground mineral additives on properties of concrete. Stroitel’nye materialy = Construction materials. 2019;3: 73–76. (In Russ., abstract in Eng.). https://doi.org/10.31659/0585-430X-2019-768-3-73-76
Bazhenov Ju. M., Bulgakov B. I., Ngo Suan Hung. Hydraulic concrete with organomineral additive. Construction materials technology: the present and the future: Proc. 1 All-Russia Scientific Conf., devoted to the 90 anniversary of the outstanding scientist- materials, academician RAACS Ju. M. Bazhenov, 1–2 October 2020, Moscow. Moscow: MGSU publ.; 2020. pp. 114–117. (In Russ.)
Pan G., Li P., Chen L., Li G. A study of the effect of rheological properties of fresh concrete on shotcrete-rebound based on different additive components. Construction and Building Materials. 2019;224: 1069–1080. https://doi.org/10.1016/j.conbuildmat.2019.07.060
Zhang S., Qiao W.-G., Chen P.-C., Xi K. Rheological and mechanical properties of microfinecement-based grouts mixed with microfine fly ash, colloidal nanosilica and superplasticizer. Construction and Building Materials. 2019;212: 10–18. https://doi.org/10.1016/j.conbuildmat.2019.03.314
Hedayatinia F., Delnavaz M., Emamzadeh S. S. Rheological properties, compressive strength and life cycle assessment of self-compacting concrete containing natural pumice pozzolan. Construction and Building Materials. 2019;206: 122–129. https://doi.org/10.1016/j.conbuildmat.2019.02.059
Li Z., Cao G. Rheological behaviors and model of fresh concrete in vibrated state. Cement and Concrete Research. 2019;120: 217–226. https://doi.org/10.1016/j.cemconres.2019.03.020
Choi B. I., Kim J. H., Shin, T. Y. Rheological model selection and a general model for evaluating the viscosity and microstructure of a highlyconcentrated cement suspension. Cement and Concrete Research. 2019;123: 105775. https://doi.org/10.1016/j.cemconres.2019.05.020
Alatawna Amr, Birenboim Matan, Nadiv Roey, Buzaglo Matat, Peretz-Damari Sivan, Peled Alva, Regev Oren, Sripada Raghu. The effect of compatibility and dimensionality of carbon nanofillers on cement composites. Construction and Building Materials. 2020;232: 117141. https://doi.org/10.1016/j.conbuildmat.2019.117141
Svintsov A. P., Shchesnyak E. L., Galishnikova V. V., Fediuk R. S., Stashevskaya N. А. Effect of nano-modified additives on properties of concrete mixtures during winter season. Construction and Building Materials. 2020;237: 117527. https://doi.org/10.1016/j.conbuildmat.2019.117527
Chintalapudi K., Pannem R. M. R. An intense review on the performance of graphene oxide and reduced graphene oxide in an admixed cement system. Construction and Building Materials. 2020;259: 120598. https://doi.org/10.1016/j.conbuildmat.2020.120598
Zhu H., Gou H., Zhou H., Jiang Z. Microscopic analysis of nano-modified fly ash by fluidized bed reactor-vapor deposition. Construction and Building Materials. 2020;260: 120434. https://doi.org/10.1016/j.conbuildmat.2020.120434
Li D., Wang D., Ren C., Rui Y. Investigation of rheological properties of fresh cement paste containing ultrafine circulating fluidized bed fly ash. Construction and Building Materials. 2018;188: 1007–1013. https://doi.org/10.1016/j.conbuildmat.2018.07.186
Smirnov V. A., Korolev E. V. Building materials as disperse systems: multiscale modeling with dedicated software. Construction and Building Materials. 2019;1–2: 43–53. (In Russ., abstract in Eng.). https://doi.org/10.31659/0585-430X-2019-767-1-43-53
Ledenev А. А., Pertsev V. T., Rudakov О. B., Barabash D. E. Development of ideas about the rheological behaviour of building mixtures taking into account fractal-cluster processes in their structure formation. Condensed Matter and Interphases. 2020;22(4): 473–480. https://doi.org/10.17308/kcmf.2020.22/3059
Pertsev V. T., Khalilbekov Ya. Z., Ledenev A. A., Perova N. S. Composition and technology of complex additives for concrete based on industrial waste. Cement i ego primenenie = Cement and its Applications. 2019;3: 98–101. (In Russ., abstract in Eng.). Available at: https://www.elibrary.ru/item.asp?id=39321673
Ledenev A. A., Pertsev V. T. Modelling and estimation of structural characteristics of the cement stone, modified by microfillers. In: Construction materials technology: the present and the future: Proc. 1 All-Russia Scientific Conf., devoted to the 90 anniversary of the outstanding scientist- materials, academician RAACS Ju. M. Bazhenov, 1–2 October 2020, Moscow. Moscow: MGSU Publ.; 2020. pp. 59–64. (In Russ.)
Ledenev А. А., Kozodaev S. P., Pertsev V. T., Baranov E. V., Tzagoruiko Т. V., Vnukov D. N. Mechanisms of act of various kinds organic-mineral additives in cement system. Vestnik BGTU im. V.G. Shuhova = Bulletin of Belgorod State Technological University named after. V. G. Shukhov. 2021;9. 99–105. https://doi.org/10.34031/2071-7318-2021-6-9-8-19
Golovinskij P. A., Ushakov I. I. Theory of fractal growth of shakes and accompanying acoustical emission. Sbornik tezisov FiPS. Moscow: Interkontaktnauka Publ., 1999. pp. 20–24. (In Russ.)
Yablokov M. Ju. Fractaldemension determination based on image analysis. n dimensions of a quantity on the basis of the analysis of the images. Russian Journal of Physical Chemistry A. 1999;2: 162–166. Available at: https://www.elibrary.ru/item.asp?id=13313798
Mandel’brot B. Fractal geometry of the nature. Moscow: Institut komp’juternyh issledovanij Publ.; 2002. 656 p. (In Russ.)
Korolev E. V., Grishina A. N., Aizenshtadt A. M. Analysis of structure formation of composites using fractal dimension. Stroitel’nye materialy = Construction Materials. 2020;9: 54–61. (In Russ., abstract in Eng.). https://doi.org/10.31659/0585-430X-2020-784-9-54-61
Krivonosova E. A., Rudakova O. A., Vstovskii G. V. Multifractal analysis of the structural composition of the heat affected zone of steels with carbonitride hardening. Zavodskaya laboratoriya. Diagnostika materialov = Industrial Laboratory. 2010;6(76): 26–30. (In Russ.). Available at: https://www.elibrary.ru/item.asp?id=14992942
Tarasevich Ju. Ju. Percolation: the theory, applications, algorithms. Moscow: Editorial URSS Publ.; 2002. 112 p. (In Russ.)
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