Effect of Fly Ash From Thermal Power Plants on the Rheological and Physical-Mechanical Properties of Non-Autoclaved Aerated Concrete
V. G. Veshnevskaya, I. S. Tkachuk, D. G. Malinin
Donbas National Academy of Civil Engineering and Architecture
Abstract: This article discusses the theoretical prerequisites for improving the properties of non-autoclaved aerated concrete through the use of local technogenic raw materials in its composition. The effect of fly ash from the Starobeshevsky and Zuevskaya TPPs on the rheological and physical-mechanical properties of non-autoclaved aerated concrete has been studied. It has been established that the introduction of TPP fly ash up to 30 % gives a plasticizing effect for aerated concrete mixture. Fluidity according to Suttard increases from 22 to 28 cm. The high dispersion of ash makes it possible to compact the interpore walls of aerated concrete, which contributes to an increase in the strength of non-autoclaved aerated concrete. In the course of the research, non-autoclaved aerated concrete was obtained on fly ash from thermal power plants with an average density in the dry state of 700 kg/m3, the strength of which meets the requirements of the standard.
Keywords: aerated concrete, non-autoclaved aerated concrete, TPP fly ash, average density, compressive strength.
Pages: 29-33.
Link for citation: Veshnevskaya, V. G.; Tkachuk, I. S.; Malinin, D. G. Effect of Fly Ash From Thermal Power Plants on the Rheological and Physical-Mechanical Properties of Non-Autoclaved Aerated Concrete. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2022. – Issue 2022-4(156) Scientific and technical achievements of students of the construction and architectural industry. – Р. 29-33. – URL: https://donnasa.ru/publish_house/journals/vestnik/2022/2022-4(156)/st_05_veschnevskaya_tkachuk_malinin.pdf (date of access: 15.10.2024). (in Russian)
Issue 2022-4 (156)Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture