Synthesis of Cenospheres from Ash and Their Application
Tanirbergenova S.K. Dinistanova B.K. Zhylybayeva N.K. Tugelbayeva D.A. Moldazhanova G.M. Aitugan A. Taju K. Nazhipkyzy M.
July 2023Multidisciplinary Digital Publishing Institute (MDPI)
Journal of Composites Science
2023#7Issue 7
The possibility of improving the strength properties of concrete materials based on ash/slag waste from thermal power plants of Almaty (Kazakhstan) by adjusting their chemical composition is considered. An X-ray phase analysis, scanning electron microscopic (SEM) analysis, infrared analysis (IR), and elemental determination analysis (EDAX) of ash and slag wastes were carried out, and additives to correct their chemical composition were selected. The analysis of the conducted studies shows that the addition of polypropylene fiber leads to an increase in the compressive crack resistance compared to the composition of the mixture in which ash is present. The highest compressive strength in which cenospheres increase in strength characteristics is observed on samples modified with 7% cenospheres. It was found that the strength of the concrete with the addition of cenospheres increased by more than two times in comparison with a sample without additives.
ash , cenospheres , concrete , microspheres
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Institute of Combustion Problems, Almaty, 050012, Kazakhstan
Department of Chemical Physics and Material Science, Faculty Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Department of Materials Science, Nanotechnology and Engineering Physics, Mining and Metallurgical Institute Named after O.A. Baikonurov, Satbayev University, Almaty, 050013, Kazakhstan
Institute of Combustion Problems
Department of Chemical Physics and Material Science
Department of Materials Science
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