Research of conditions of removal of fire protection from building construction
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Дата
2020
Автори
Tsapko, Yu.
Tsapko, A.
Bondarenkо, O.
Заголовок журналу
Журнал ISSN
Назва тому
Видавець
Анотація
Fireproof coatings at the time of operation of the building structure is a separate and
complex task, covering both the stages of the process protection from moisture, and subsequent fire
protection formed during the swelling of the coating. They have been proven to create a layer of
material on the surface that prevents moisture from penetrating the wood when the destruction of
the coating begins. This makes it possible to determine the effect of flame retardants and the
properties of the protective compositions on the process of slowing down the rate of water
absorption. The process of moisture transfer by flame retardant coating in the presence of a
polymeric shell is simulated, the diffusion and mass transfer dependences are obtained, and the
diffusion coefficient is determined, which is 7.08·10-12 m2/s, which allow to obtain a change in the
dynamics of moisture upon washing out of the flame retardant. The results of determining the
weight loss of the coating sample during exposure to water indicate the ambiguous effect of the
nature of the leaching agent. In particular, this implies the availability of data sufficient for
qualitatively conducting the process of inhibition of moisture diffusion and detection on its basis of
the moment from which the fall of the coating efficiency begins. Features of slowing down the
process of moving the moisture to the material that is treated with flame retardant, are in several
aspects. Namely, the use of water-insoluble flame retardants and other components, as well as
polymer binder, which are characterized by the formation of polymer shell on the surface of the
wood.
Опис
Стаття
Ключові слова
protective agents, mass transfer, weight loss, moisture diffusion, surface treatment, protection efficiency, Кафедра товарознавства та комерційної діяльності в будівництві
Бібліографічний опис
Tsapko Yu. Research of conditions of removal of fire protection from building construction / Yu. Tsapko, A. Tsapko, O. Bondarenkо // Key Engineering Materials. - Vol. 864. - pp. 141-148. - Бібліогр. : 16 назв.