Fire Resistant Panels for the Tunnel Linings

Gravit, Marina; Antonov, Sergey; Nedryshkin, Oleg; Nedviga, Ekaterina; Pershakov, Valerii

doi:10.1051/matecconf/20167304007

Cited by 7 publications

(2 citation statements)

References 13 publications

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“…To prove the positive effect of carbon nanoclusters on fire-protective properties of intumescents, the fire tests were conducted according to GOST 53295 methods; specimens contained 0.9 mass.% of fullerene soot have shown 10 min increase in thermal stability [20,21].…”

Section: Methodsmentioning

confidence: 99%

The enhancement of operating properties of intumescent fire-protective compositions

et al. 2018

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The paper overviews the operational properties of charred layers which are forming as a result of thermolytical synthesis of intumescent coatings, and the ways of enhancing those properties using different additives mixed with initial intumescent composition. Methods including differential thermal analysis, thermogravimetric analysis, microscale calorimetry and scanning electron microscopy were used to investigate the modified intumescent compositions and the properties of charred layers formed from them. Results show that additives tend to change the microstructure of char which undergoes some transformations; it is proven by increase in volume and stability. Also it is shown that melamine-aldehyde resin was detected in the microstructure of char, and it is a step forward in forming a holistic conception of intumescents operating.

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Section: Methodsmentioning

confidence: 99%

The enhancement of operating properties of intumescent fire-protective compositions

et al. 2018

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“…Fullerene-containing soot is a product of the first subprocess of fullerene production; it contains of graphite's microparticles and non-purified fullerenes with different structure (C60, C70 etc.). Such material may have a great impact on the properties of intumescent coatings [6], because a charred layer is basically a carbon matrix which can easily accept another carbon materials, such as graphite and fullerenes; the last ones have proven themselves as strengthening additives [3] which can protect a charred layer from destruction and parching [7]. Microspheres are microscopic spheres of glass, aluminosilicate and etc.…”

Section: Introductionmentioning

confidence: 99%

Intumescent coatings with improved properties for high-rise construction

et al. 2018

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The paper overviews the way of creating intumescent fire-protective compositions with improved properties by adding nano-and micro-sized supplements into them. Intumescent paints are inert at low temperatures, and at higher temperatures they expand and degrade to provide a charred layer of low conductivity materials. The modified intumescent paints are able to form a more stable charred layer than the classical paints. The stability of a charred layer is crucial if the fire safety in high-rise construction must be secured, because a weak charred layer will not provide a required fire endurance for steel bearing structures and they will break down in case of fire. The fire-protective properties of modified intumescent paints were estimated using an electrical furnace. Also the way of thermal decomposition of the paints was studied with thermogravimetric analysis. Results show that modified intumescent paints form a charred layer with improved fire-protective properties; it can serve as a thermal barrier for a longer period of time. Thermogravimetric analysis confirms this fact showing that the temperatures of full thermal decay in case of modified paints are higher than those of non-modified paints.

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