Heavy Concrete for Hydraulic Structures
Abstract: The article provides a theoretical and experimental justification of the feasibility of using pozzolan cements and chemical additives in heavy concrete. To obtain the most dense and durable concrete, the selection of the mass ratio of large and small aggregates was carried out. As a result of experimental studies, it was found that when using a large aggregate of fractions 5…10/10…20 mm, their optimal number and ratio is 30/70 % and 70/30 %. It is advisable to fill the residual intergranular space with a fine aggregate with its content of 43 % of the total mass of all aggregates. In particular, the use in the composition of concrete mixtures of fly ash from Zuevskaya TPP in the amount of 30 % instead of cement in the combined binder and superplasticizer P7 of the «Green Thermo» trademark makes it possible to obtain concretes with improved characteristics when using fine aggregate that does not meet the requirements of regulatory documents.
Keywords: hydraulic concrete, concrete composition, fly ash, superplasticizer, voidness, mobility, strength.
Pages: 49-54.
For citation: Voronenko, M. E.; Skibina, A. A.; Yegorova, Ye. V. [et al.]. Heavy Concrete for Hydraulic Structures. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2022. – Issue 2022-1(153) Modern building materials. – Р. 49-54. – URL: https://donnasa.ru/publish_house/journals/vestnik/2022/2022-1(153)/st_06_voronenko_skibina_egorova_lahtarina_petrik.pdf (date of access: 19.11.2024). – ISSN 2519-2817.
Issue 2022-1 (153)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture