Please use this identifier to cite or link to this item: https://dspace.mnau.edu.ua/jspui/handle/123456789/14933
Title: Modern Materials for Fire Protection of Reinforced Concrete Agro-Industrial Structures
Authors: Петрова, Олена Іванівна
Petrova, Olena
Манушкіна, Тетяна Миколаївна
Manushkina, Tetyana
Шевчук, Наталя Петрівна
Shevchuk, Natalya
Качанова, Тетяна Володимирівна
Kachanova Tatiana, Tatiana
Keywords: fire protection
fire test
geopolymer
mineral mixture
reinforced concrete
temperature
Issue Date: 2023
Publisher: Mykolayiv National Agrarian University
Citation: Petrova, O., Manushkina, T., Shevchuk, N., & Kachanova, T. (2023). Modern Materials for Fire Protection of Reinforced Concrete Agro-Industrial Structures. In Key Engineering Materials (Vol. 952, pp. 105–110). Trans Tech Publications, Ltd. https://doi.org/10.4028/p-bnrf9f
Abstract: This article presents the results of fire properties of modern materials, namely geopolymer fire-insulating mixtures of domestic production to provide fire protection of reinforced concrete structures of the agroindustrial complex. According to the data of the fire test, it has been established that with the thickness of a fire-proof geopolymer coating of 10 mm no heating of the surface of a reinforced concrete specimen (300<380°С) or of the armature at the depth of its embedding (124.5<500°С) up to the limit states has been noted. It they shown that the protective coating reduces the critical temperature of brittle fracture of reinforced concrete by a factor of 1.3 during 180 minutes of the test. It has been note that due to the protective properties of the coating, the temperature of armature heating at the depth of its laying decreases 4 times in comparison with the unprotected reinforced concrete specimen during 180 minutes of the test. The mechanism of formation of an effective fine-pore structure in the coating with its developed and high heat-absorbing and dissipating capacity has been reveale due to the transition of the binder into the glass-like state, which prevents both physically and chemically bound water vapor from escaping into the hydrate new formations of the geopolymer binder.
Description: Повний текст статті доступний з сайту видавця за посиланням: https://www.scientific.net/KEM.952.105
URI: https://dspace.mnau.edu.ua/jspui/handle/123456789/14933
Appears in Collections:Публікації науково-педагогічних працівників МНАУ у БД Scopus
Статті (Факультет агротехнологій)

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