Abstract
The paper presents the results of studies of magnesia compositions of porous structure. The possibility of pore formation in the structure of magnesia materials by various technological methods is shown. It was found that the high adhesive capacity of magnesia binders allows the use of fillers of various origins in compositions. The characteristics of magnesia compositions containing an ash microsphere, expanded polystyrene, expanded granules based on liquid glass, and porous magnesia granules are determined. A combination of porization methods is proposed for the formation of low-density magnesia compositions. A comparative analysis of the mechanical and thermal properties of porous magnesia compositions of various preparations is carried out. The advantages of complex porization of magnesia compositions due to a combination of mechanisms of foaming, gas formation and insertion of fillers of a porous structure are revealed. Magnesia compositions containing integral fillers of various shapes and origins are proposed. Multi-component compositions are characterized by a density of 540 kg/m3 and a compressive strength of 4.1 MPa. The impact of the method of preparing the molding mixture on the strength of porous structures is established. Porous raw materials were developed to produce granulated magnesia aggregate based on caustic magnesite and wood particles. Magnesia aggregate granules are used to obtain granular-cellular and coarse-pore structure of compositions.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Chen, L., Wang, L., Daniel, C.W., Tsang, V., Chi, M., Poon, S.: Efficacy of green alternatives and carbon dioxide curing in reactive magnesia cement-bonded particleboards. J. Clean. Product. 258, 120997 (2020)
Xu, B., Ma, H., Hu, C.: Influence of curing regimes on mechanical properties of magnesium oxychloride cement-based composites. Constr. Build. Materials 102, 613–619 (2016)
Ba, M., Xue, T., He, Z., Wang, H., Liu, J.: Carbonation of magnesium oxysulfate cement and its influence on mechanical performance. Constr. Build. Mater. 223, 1030–1037 (2019)
Zhu, H., Yu, H., Ma, H., Yang, S.: Uniaxial compressive stress-strain curves of magnesium oxysulfate cement concrete. Constr. Build. Mater. 232, 117244 (2020)
Ruan, S., Unluer, C.: Influence of supplementary cementitious materials on the performance and environmental impacts of reactive magnesia cement concrete. J. Clean. Product. 159, 62–73 (2017)
Kumar, S., Sonat, C., Yang, E.-H., Unluer, C.: Performance of reactive magnesia cement formulations containing fly ash and ground granulated blast-furnace slag. Constr. Build. Mater. 232, 117275 (2020)
Miryuk, O.A.: Properties of magnesium composite materials based on technogenic raw materials. ARPN J. Eng. Appl. Sci. 2(13), 545–558 (2018)
Mitina, N.A., Revva, I.B., Ditts, A.A., Simonov, D.V.: Waterproof magnesia binder for composite. Mater. Key Eng. Mater. 712, 182–187 (2016)
Miryuk, O.A.: Porous magnesia compositions of a combined structure. IOP Conf. Ser. Mater. Sci. Eng. Mod. Build. Mater. 365(3), 032052 (2018)
Xiangming, Z., Zongjin, L.: Light-weight wood-magnesium oxychloride cement composite building products made by extrusion. Constr. Build. Mater. 27, 382–389 (2012)
Acknowledgements
This research is funded by the Science Committee of the Ministry of Education and Science of the Republic of Kazakhstan (Grant No. AP08856219).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 The Author(s), under exclusive license to Springer Nature Switzerland AG
About this paper
Cite this paper
Miryuk, O.A. (2021). Porous Magnesia Compositions with Various Fillers. In: Klyuev, S.V., Klyuev, A.V. (eds) Proceedings of the International Conference Industrial and Civil Construction 2021. ICICC 2021. Lecture Notes in Civil Engineering, vol 147. Springer, Cham. https://doi.org/10.1007/978-3-030-68984-1_50
Download citation
DOI: https://doi.org/10.1007/978-3-030-68984-1_50
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-68983-4
Online ISBN: 978-3-030-68984-1
eBook Packages: EngineeringEngineering (R0)