Investigation of the effect of a multicomponent additive on the structure formation and hardening of cement composites
Abstract
The development and application of multicomponent multifunctional additives for cement composites is an important research area since the use of such additives allows controlling both the rheological properties of the freshly prepared mixture and the physical and mechanical characteristics of the finished composite.
This work proposes to use a multicomponent multifunctional additive with the composition of “SiO2 nanoparticle - superplasticiser - polypropylene fibre” for the modification of cement composite materials based on sand and chalky flour. We studied the peculiarities of the influence of this additive on the technological characteristics of mixtures (plasticity and form stability) and the processes of setting-up, hydration, structure formation, and strength gain of the composite materials.
It was shown that the introduction of this additive allows increasing the plasticity limit and structural strength and reducing relative plastic deformations of the cement mixture at the manufacturing stage. At the same time, this additive accelerates the processes of setting-up, hydration, and strength gain of cement composites. It was proved that the increase in strength is due to the formation of a dense structure of hydrated new growths of the cement substance formed by phases of low and highly basic calcium silicate hydrates of various compositions and morphologies, as well as the absence of a portlandite
phase.
Downloads
References
Artamonova O. V., Chernyshov E .M. Concepts and foundations of nanomodification technologies for structures of building composites. Part 1. General problems of fundamentality, the main directions of research and development. Stroitel’nye materialy = Building Materials. 2013;9: 82–90. (In Russ.). Available at: https://elibrary.ru/item.asp?id=20278771
Artamonova O. V., Chernyshov E. M. To the problem of conceptual models of management of the evolutionary route of formation of nanomadified solid systems in tht structure of construction composites. Izvestiya vysshih uchebnyh zavedenij. Stroitel’stvo = News of Higher Educational Institutions. Construction. 2018;5(713): 44–57. (In Russ., abstract in Eng.). Available at: https://elibrary.ru/item.asp?id=35618470
Nizina T. A., Selyaev V. P., Balykov A. S., Volodin V. V., Korovkin D. I. Optimization of compositions of multicomponent fine-grained fiber-reinforced concrete modified at various scale levels. Nanotekhnologii v stroitel’stve: nauchnyj internetzhurnal = Nanotechnologies in construction: an online scientific journal. 2017;9(2): 43–65. (In Russ.). https://doi.org/10.15828/2075-8545-2017-9-2-43-65
Kalpana M., Vaidevi C., Vijayan D. S., Benin S. R. Benefits of metakaolin over microsilica in developing high performance concrete. Materials Today: Proceedings. 2020;33(1): 977–983. https://doi.org/10.1016/j.matpr.2020.06.566
Ratinov V. B., Rozenberg T. I. Additives in concrete. Moscow: Stroyizdat Publ.; 1989. 188 p. (In Russ.)
Izotov V. S., Sokolova Yu. A. Chemical additives for concrete modification. Moscow: Paleotip Publ.; 2006. 244 p. (In Russ.)
Kakooei S., Akil H. M., Jamshidi M., Rouhi J. The effects of polypropylene fibers on the properties of reinforced concrete structures. Construction and Building Materials. 2012;27(1): 73–77. https://doi.org/10.1016/j.conbuildmat.2011.08.015
Shaikh F. U. A., Luhar S., Arel H. S., Luhar I. Performance evaluation of Ultrahigh performance fibre reinforced concrete – A review. Construction and Building Materials. 2020;232: 117152. https://doi.org/10.1016/j.conbuildmat.2019.117152
Zeyad A. M. Effect of fibers types on fresh properties and flexural toughness of self-compacting concrete. Journal of Materials Research and Technology. 2020;9(3): 4147–4158. https://doi.org/10.1016/j.jmrt.2020.02.042
Artamonova O. V. Synthesis of nanomodifying additives for the technology of building composites. Voronezh: Voronezhskij GASU Publ.; 2016. 100 p. (In Russ.)
Plank J., Sakai E., Miao C. W., Yu C., Hong J. X. Chemical admixtures – chemistry, applications and their impact on concrete microstructure and durability. Cement and Concrete Research. 2015;78: 81–99. https://doi.org/10.1016/j.cemconres.2015.05.016
Kalashnikov V. I., Tarakanov O. V. About the use of complex additives in new generation concrete. Stroitel’nye materialy = Building materials. 2017;1-2: 62–67. (In Russ., abstract in Eng). Available at: https://elibrary.ru/item.asp?id=28392793
Kaprielov S. S., Shejnfel’d A. V., Dondukov V. G. Cements and additives for the production of highstrength concrete. Stroitel’nye materialy = Building materials. 2017;11: 4–10. . (In Russ., abstract in Eng). Available at: https://elibrary.ru/item.asp?id=30744332
Tao Y., Rahul A. V., Lesage K., Yuan Y., K. V. Tittelboom, De Schutter G. Effects of colloidal nanosilica/polycarboxylate ether superplasticizer nanocomposite and graphene oxide on properties of fly ash blended cement. Construction and Building Materials. 2020;262: 120767. https://doi.org/10.1016/j.conbuildmat.2020.120767
Liu J., Yu C., Shu X., Ran Q., Yang Y. Recent advance of chemical admixtures in concrete. Cement and Concrete Research. 2019;124: 105834. https://doi.org/10.1016/j.cemconres.2019.105834
Artamonova O. V., Slavcheva G. S., Chernyshov E. M. Effectiveness of combined nanoadditives for cement systems. Inorganic Materials. 2017:53(10): 1080–1085. https://doi.org/10.1134/S0020168517100028
Slavcheva G. S., Artamonova O. V., Shvedova M. A., Britvina E. A. Effect of viscosity modifiers on structure formation in cement systems for construction 3D printing. Inorganic Materials. 2021;57: 94–100. https://doi.org/10.1134/S0020168521010143
Russel N., Lanos C. Plastic fluid flow parameters identification using a simple squeezing test. Applied Rheology. 2003;13(3): 3–5. https://doi.org/10.1515/arh-2003-0009
Perrot A., Rangeard D., Pierre A. Structural built-up of cement-based materials used for 3D-printing extrusion techniques. Materials and Structures. 2016;49: 1213–1220. https://doi.org/10.1617/s11527-015-0571-0
Slavcheva G. S., Babenko D S., Shvedova M. A. Analysis and criteria evaluation of rheological behavior of mixtures for 3D construction printing. Stroitel’nye materialy = Building materials. 2018;12: 34–40. (In Russ.). https://doi.org/10.31659/0585-430X-2018-766-12-34-40
Lootens D., Joussett O., Matinie L., Roussel N., Flatt R. J. Yield stress during setting of cement pastes from penetration test. Cement and Concrete Research. 2009;39: 401–408. https://doi.org/10.1016/j.cemconres.2009.01.012
JCPDS – International Centre for Diffraction Data. © 1987 – 1995. JCPDS – ICDD. Newtown Square, PA. 19073. USA. Available at: https://www.icdd.com/
Bullard J. W., Jennings H. M., Livingston R. A.Mechanisms of cement hydration. Cement and Concrete Research. 2011;41: 1208–1223. https://doi.org/10.1016/j.cemconres.2010.09.011
Copyright (c) 2022 Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases
This work is licensed under a Creative Commons Attribution 4.0 International License.
