Composite sandwich-type panel made of foamgypsum

Soloveiko, Santa; Pulkis, Kristaps; Skujans, J.; Aboltins, Aivars

doi:10.22616/erdev2018.17.n347

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…5). This does not differ from practical data, well known from works [4,7], the authors of which also associate the effectiveness of fire protection with the formation of a layer of pinocoke during the decomposition of the coating under the influence of the burner flame. But, in contrast to the results of research reported in [17,18], 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: Features Of Reducing the Degree Of Burnout Of A Fire-resista...supporting

confidence: 58%

“…Paper [7] deals with sandwich panels with structural, sound, fire, and thermal insulation properties, made of a foamed gypsum core with an open and closed cellular structure and facing of increased strength on both sides from ordinary plasterboard. Gypsum is used as a fire and acoustic material with excellent fire protection because it dehydrates at temperatures around 100 °C, absorbing energy and acting as a thermal barrier.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Establishing patterns in reducing fire-dangerous properties of sip panels fire-protected with reactive coating

Tsapko,

Likhnyovskyi

et al. 2024

EEJET

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An issue related to using SIP panels for building structures is to ensure their stability and durability during operation in wide ranges. Therefore, the object of research was the change in the properties of wood-polymer material in case of fire and its protection when applied with a reactive coating capable of forming a pinocoke 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 heat insulation process of SIP panels involves the formation of soot-like products on the surface of the material. Thus, under the action of the radiation panel on the surface of the OSB sample, after 120 s of thermal exposure, the process of intensive formation of a layer of foam coke, which thermally insulated the wood-polymer material, began; instead, after the radiation panel was exposed to the fire-resistant polystyrene foam sample, the process of destruction began at a temperature of about 100 °C polystyrene foam. When determining the flammability of a fire-resistant SIP panel, it was established that the temperature of the flue gases during the tests was no more than 110 °C, the length of the damaged sample did not exceed 460 mm. At the same time, the mass loss did not exceed 200 g, and independent combustion of the SIP panel sample did not occur despite the high temperature. According to these data, the SIP panel, fire-resistant with a reaction coating, belongs to group G1 (low flammability) and is a non-flammable material. The practical significance is that the results were taken into account during the design of buildings from SIP panels. So, there are reasons to assert the possibility of targeted regulation of the fire protection processes of SIP panels through the use of 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: Features Of Reducing the Degree Of Burnout Of A Fire-resista...supporting

confidence: 58%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Establishing patterns in reducing fire-dangerous properties of sip panels fire-protected with reactive coating

Tsapko,

Likhnyovskyi

et al. 2024

EEJET

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“…Modern constructions and large products are often produced of prefabricated multi-layered mechanical structures, which exhibit high specific stiffness, strength, environmental resistance and thermal insulation characteristics [2,3]. Such mechanical structures are widely used in residential and industrial buildings [4,5], thermal and nuclear power stations, space stations, ships [6][7][8] and airplanes [9].…”

Section: Introductionmentioning

confidence: 99%

“…Gypsum is a natural, cheap, and ecologic raw material, which provides excellent fire protection because it dehydrates at a temperature around 100°C absorbing energy and acting as a heat barrier [3]. However, the dehydration process severely deteriorates its integrity causing the material to lose most of the ambient temperature strength [1,13].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Multi-layered Fire Doors with Gypsum Layer Exposed to Fire

Guobys

Mokšin

2021

Period. Polytech. Civil Eng.

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This article analyzes gypsum board dehydration effect on heat conductivity and deformation of multi-layered mechanical structures subjected to temperature changes. Specially designed structures (fire doors) consisting of steel sheets with stone wool and gypsum insulating layers in between were heated in furnace for a specified period of time of not less than 60 min. Temperature versus time curves and deformations of multi-layered structures were obtained. Experimental results were verified by numerical simulation. Experimental data was found to be in good agreement with numerical simulation results. The percent differences between door temperatures from simulation and fire test don’t exceed 9 %. This shows that thermal behavior of such multi-layered structures can be investigated numerically avoiding time-consuming and expensive fire tests. The data obtained allowed to calculate convective heat transfer coefficient of gypsum board, which was fitted into multi-layered mechanical structure. It was found that it is more advantageous to place gypsum layer in the middle of the structure rather than closer to the fire source in order to cool the structure more efficiently during fire.

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Reuse of CD and DVD Wastes as Reinforcement in Gypsum Plaster Plates

et al. 2020

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The continuous and rapid evolution in the field of computing, and in particular in the field of storage devices, has led to the obsolescence of optical discs in favour of mass storage devices. In that sense, a large number of CDs and DVDs become obsolete each day in the world. In trying to create a recovery solution for those pieces, research in which polycarbonate (PC) waste from recycled discs have been used to develop new gypsum coating materials and products has been conducted. In a previous study, the physical and mechanical properties of new gypsum plasters, with PC waste as aggregate, were studied. Following that study, this article aims at creating new gypsum plaster false ceiling plates, using CD and DVD residues in different scenarios: as crushed aggregate in the gypsum matrix, as full reinforcement pieces of the plates and as a combination of both. The mechanical behaviour and the thermal conductivity of the new pieces have been analysed in this paper. The results showed an important improvement in the mechanical and thermal properties of the plates when the PC waste was used in many scenarios.

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Composite sandwich-type panel made of foamgypsum

Cited by 3 publications

References 7 publications

Establishing patterns in reducing fire-dangerous properties of sip panels fire-protected with reactive coating

Establishing patterns in reducing fire-dangerous properties of sip panels fire-protected with reactive coating

Investigation of Multi-layered Fire Doors with Gypsum Layer Exposed to Fire

Reuse of CD and DVD Wastes as Reinforcement in Gypsum Plaster Plates

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