Influence of Mixing Order on the Synthesis of Geopolymer Concrete
Mukhametkaliyev T. Ali M.H. Kutugin V. Savinova O. Vereschagin V.
November 2022MDPI
Polymers
2022#14Issue 21
Geopolymers are high-performance, cost-effective materials made from industrial waste that ideally fit the needs of 3D printing technology used in construction. The novelty of the present work lies in the investigation of methods to mix geopolymer concrete from fly ash (FA) class F, ground granulated blast furnace slag (GGBS), and raw calcined kaolin clay (RCKC) to determine the mixing procedure which provides the best mechanical strength and structural integrity. The experimental results show that aluminosilicates with different reaction parameters when mixed one after another provide the optimal results while the geopolymer concrete possesses the highest compressive strength and the denser structure. The results demonstrated that the reactivity of GGBS, FA, and RCKC increased for different depolymerization speeds of the selected aluminosilicates. This research will provide results on how to improve the mixing order for geopolymer synthesis for 3D printing demands. The highest compressive strength and denser structure of geopolymer concrete is achieved when each type of aluminosilicate is mixed with an alkaline medium separately.
clay , concrete , fly ash , geopolymer , inorganic polymer , slag
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Department of Mechanical and Aerospace Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Kabanbay Batyr Ave. 53, Astana, 010000, Kazakhstan
Research Laboratory “Refractory Non-Metallic and Silicate Materials”, National Research Tomsk Polytechnic University, Tomsk, 634050, Russian Federation
Department of Mechanical and Aerospace Engineering
Research Laboratory “Refractory Non-Metallic and Silicate Materials”
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