Affiliation:
1. Bryanskiy gosudarstvennyy inzhenerno-tehnologicheskiy universitet
2. Bryansk State University of Engineering and Technology
3. Bendery Polytechnic Branch of the State Educational Institution «Pridnestrovian State University named after T.G. Shevchenko»
Abstract
One of the determining factors in the development of modern concrete science is the development of new resource-saving technologies for the production of cement concrete and products made from them using various industrial wastes, in particular ash and slag mixtures (ASM) formed at thermal power plants during the joint hydraulic or pneumatic removal of ash and slag into a dump during the process. burning coal in a dusty state. The problem of waste disposal is especially relevant for territories with limited free land, high population density and lack of mineral resources. Such regions include the Transnistrian Moldavian Republic, in which one of the largest in Eastern Europe, the Moldavian State District Power Plant (MSDPP), operates, providing electricity to Transnistria and neighboring countries (Moldova, Romania, Bulgaria). During the operation of MSDPP, a zone of ash and slag mixtures with a volume of more than 10 million tons was formed on coal, the use of which in cement concrete technology can be based on the regulatory and technical documentation of the Russian Federation. The paper presents the results of studies of the structure and physicochemical properties (chemical and particle size composition, hydrosilicate and silica modules, quality factor) of the ASM MSDPP. An assessment of the effectiveness of naphthalene-formaldehyde and polycarboxylate superplasticizers was carried out according to the criterion of changing the strength of fine-grained concrete from the ASM MSDPP.
Publisher
BSTU named after V.G. Shukhov
Reference20 articles.
1. Лесовик В.С., Федюк Р.С. Повышение эффективности малопроницаемых цементных композитов // Вестник МГСУ. 2021. Т. 16. № 10. С. 1346–1356., Lesovik V.S., Fedyuk R.S. Increasing the performances of low permeable cement composites [Povyshenie effektivnosti malopronicaemyh cementnyh kompozitov]. Vestnik MGSU (Monthly Journal on Construction and Architecture). 2021. No. 16 (10). Pp. 1346–1356. (rus)
2. Перцев В.Т., Халилбеков Я.З., Леденев А.А., Перова Н.С. Состав и технология комплексных добавок для бетона на основе промышленных отходов // Цемент и его применение. 2019. № 3. С. 98–101., Percev V.T., Halilbekov YA.Z., Ledenev A.A., Perova N.S. Composition and technology of complex additives for concrete based on industrial waste [Sostav i tekhnologiya kompleksnyh dobavok dlya betona na osnove promyshlennyh othodov]. Journal Cement and its Applications. 2019. No 3. Pp. 98–101. (rus)
3. Леденев А.А., Козодаев С.П., Перцев В.Т., Баранов Е.В., Загоруйко Т.В., Внуков Д.Н. Механизмы действия различных видов органоминеральных добавок в цементной системе // Вестник БГТУ им. В.Г. Шухова. 2021. № 9. С. 8–19., Ledenev A.A., Kozodaev S.P., Percev V.T., Baranov E.V., Zagorujko T.V., Vnukov D.N. Mechanisms of act of various kinds of organic mineral additives in cement system [Mekhanizmy dejstviya razlichnyh vidov organomineral'nyh dobavok v cementnoj sisteme]. Bulletin of BSTU named after V.G. Shukhov. 2021. No 9. Pp. 8–19. (rus)
4. Перцев В.Т., Леденев А.А., Рудаков О.Б. Физико-химические подходы к разработке эффективных органоминеральных добавок для бетона // Конденсированные среды и межфазные границы. 2018. Т. 20. № 3. С. 432–442., Percev V.T., Ledenev A.A., Rudakov O.B. Physical and chemical approaches to the development of effective organomineral additives for concrete [Fiziko-himicheskie podhody k razrabotke effektivnyh organomineral'nyh dobavok dlya betona]. Condensed matter and interphases. 2018. No 20 (3). Pp. 432–442. (rus)
5. Тараканов О.В., Акчурин Т.К., Белякова Е.А., Душко О.В. Перспективы применения комплексных органоминеральных добавок в бетонах нового поколения // Вестник Волгоградского государственного архитектурно-строительного университета. Серия: Строительство и архитектура. 2023. № 2 (91). С. 88–98., Tarakanov O.V., Akchurin T.K., Belyakova E.A., Dushko O.V. Prospects for the use of complex organomineral additives in new generation concrete [Perspektivy primeneniya kompleksnyh organomineral'nyh dobavok v betonah novogo pokoleniya]. Vestnik Volgogradskogo gosudarstvennogo arhitekturno-stroitel'nogo universiteta. Seriya: Stroitel'stvo i arhitektura. 2023. No 2 (91). Pp. 88–98. (rus)