Research on Thermal Response Behavior of the Intumescent Coating at High Temperature: An Experimental and Numerical Study

Zhang, Lingyun; Hu, Yu‐Peng; Li, Minghai

doi:10.3390/buildings12071014

Cited by 2 publications

(2 citation statements)

References 39 publications

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“…This does not differ from the practical data, well known from works [1,3,5], the authors of which, by the way, also associate the effectiveness of fire protection with the formation of a foam coke layer under the influence of the burner flame. But, in contrast to the results of research reported in [6,7,18,19], our data on the effect of the swelling coating on the process of retarding the transfer of temperature allow us to state the following:…”

Section: Discussion Of Results Of Studying the Process Of Formation O...supporting

confidence: 55%

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Determining patterns in the formation of an insulation layer of foam coke when protecting concrete against fire by reactive coating

Tsapko,

Likhnyovskyi,

Tsapko

et al. 2023

EEJET

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An issue related to using concrete for building structures is to ensure their stability and durability during operation within wide limits. Therefore, the object of research was the change in the properties of concrete in case of fire and its protection when applied with a reactive coating capable of forming a foam coke layer under the influence of high temperature on the coating. It has been proven that in the process of thermal action on the fire-resistant coating, the process of heat insulation of concrete involves the formation of soot-like products on the surface of the material. Thus, under the influence of the flame of the burner, a temperature arose on the surface of the sample, which led to the swelling of the coating by more than 18 mm. The measured temperature on the surface of the concrete sample under the layer of foam coke was no more than 140 °C, which indicates the formation of a fire barrier. In this regard, modeling of the process of heat transfer through the formed layer of foam coke in the process of its protection with a reactive coating was carried out and dependence was established, which makes it possible to estimate the coefficients of temperature conductivity and thermal conductivity during high-temperature action. According to the experimental data and the established dependences, the coefficient of temperature conductivity and heat conductivity of foam coke was calculated, which is 9.17·10–7 m2/s and 0.17 W/(m∙K). The assessment of the maximum possible penetration of fire through the layer of foam coke was carried out. A temperature was formed on the surface of the sample, which significantly exceeded the temperature of the destruction of concrete, and on the surface of concrete under the coating it did not reach 250 °C. So, there are reasons to assert the possibility of targeted regulation of concrete fire protection processes by using reactive coatings capable of forming a protective layer on the surface of the material that inhibits the rate of heat transfer

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Section: Discussion Of Results Of Studying the Process Of Formation O...supporting

confidence: 55%

“…The swelling coating is able to provide effective protection against fire simultaneously with practicality and aesthetics [5]. In the cited study, experiments are first conducted on the expansion performance and thermophysical properties to obtain the basic parameters at different temperatures.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determining patterns in the formation of an insulation layer of foam coke when protecting concrete against fire by reactive coating

Tsapko,

Likhnyovskyi,

Tsapko

et al. 2023

EEJET

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The Development of Cement-Based, Intumescent and Geopolymer Fire-Retardation Coatings for Metal Structures: A Review

Wang

2023

Coatings

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Coating, as one of the significant applications in the building and construction sector, is crucial to prevent steel from reaching critical temperature and fire-induced structural collapse. This article reviews the current use of conventional coatings and assesses the potential use of novel geopolymer coatings on the metal substrate, particularly on the steel structure. The conventional passive fireproofing systems, including cement-based coatings and intumescent coatings, exhibit unavoidable limitations either due to the high thickness and weight or poor thermal and chemical resistance of the coating. Thus, innovations in conventional and novel coatings are constantly developing and growing rapidly. In recent years, geopolymer coatings have attracted much attention due to their higher mechanical strength and excellent resistance to chemicals and heat. Moreover, the green and environmentally friendly characteristics make geopolymer an admirable coating material for many applications. The main challenge that lies in the development of geopolymer coating is the interfacial bonding with the metal structure. Therefore, the influencing factors, including precursor materials, alkaline activator, and curing processes on the adhesion and thermal and chemical resistance of the geopolymer coating have been well explored. The performance comparison between these coatings indicates that geopolymer coating offers a superior mechanical and thermal performance, along with a substantially lower environmental impact compared with cement-based coating. This suggests that geopolymer coatings have great potential for fire protection on steel structures.

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Research on Thermal Response Behavior of the Intumescent Coating at High Temperature: An Experimental and Numerical Study

Cited by 2 publications

References 39 publications

Determining patterns in the formation of an insulation layer of foam coke when protecting concrete against fire by reactive coating

Determining patterns in the formation of an insulation layer of foam coke when protecting concrete against fire by reactive coating

The Development of Cement-Based, Intumescent and Geopolymer Fire-Retardation Coatings for Metal Structures: A Review

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