Pregled bibliografske jedinice broj: 1266017
Thermal behavior of polymer foam cavity insulated LSF walls under standard fire conditions
Thermal behavior of polymer foam cavity insulated LSF walls under standard fire conditions // 4th International Congress on Materials & Structural Stability ; Abstract Proceedings / Diouri, Abdeljebbar ; Khachani, Nacer ; Saadi, Mohamed ; Elhachmi, Driss Ez-zaki, Hassan ; Hadouch, Mohammed ; (ur.).
Rabat, 2023. str. 97-97 (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 1266017 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Thermal behavior of polymer foam cavity insulated
LSF walls under standard fire conditions
Autori
Ščapec, Tomislav ; Jelčić Rukavina, Marija ; Skejić, Davor ; Palijan, Ivan ; Prlić, Tomislav
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
4th International Congress on Materials & Structural Stability ; Abstract Proceedings
/ Diouri, Abdeljebbar ; Khachani, Nacer ; Saadi, Mohamed ; Elhachmi, Driss Ez-zaki, Hassan ; Hadouch, Mohammed ; - Rabat, 2023, 97-97
Skup
4th International Congress on materials & Structural Stability ˛RILEM Spring Convection Rabat 2023
Mjesto i datum
Rabat, Maroko, 08.03.2023. - 10.03.2023
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
LSF panels ; Fire resistance ; Fire testing, Thermal properties
Sažetak
In some parts of the world, lightweight steel framed (LSF) construction systems have proven to be a fast, economical, and efficient method of constructing residential and non-residential buildings, offering significant advantages over concrete and masonry structures. Since thin steel lipped channel studs have high thermal conductivity, thermal insulation should be optimized to ensure the lowest possible thermal transmittance for an energy efficient building. In current practice, mineral wool (MW) placed in the cavity between at least two layers of gypsum plasterboard (GB) is the preferred choice of insulation. However, such LSF systems using MW do not take into account deficiencies such as the thermal bridging effect and potential moisture condensation, which can reduce the thermal performance of the assembly. It is known that polymer insulation materials have better thermal conductivity and resistance to water permeability than MW. Consequently, they can provide better thermal performance at ambient temperature for the same overall thickness of the assembly. However, the use of polymer insulation materials in LSF structures has not been explored due to the flammability of the material, which can negatively affect their fire resistance. Therefore, a new LSF composite structure is being studied in which steel studs and polymer foam are encapsulated in gypsum fiberboard (GFB). GFBs are believed to provide better fire performance than standard GFBs. Spacers are also used to separate the steel and lining boards to prevent thermal bridging. This paper presents the results of a fire test on such a LSF composite assembly and details of the preliminary finite element model developed to simulate the heat transfer mechanism through the specimen. The numerical analyzes were performed using the ABAQUS finite element program. The model is based on the preliminary thermal properties of the polymer foam and gypsum fiberboards tested by TGA and DSC methods, as well as data from the literature. The fire test showed that while the GFBs maintained their integrity the PUR foam did not ignite, and no significant temperature increases were observed at the steel structure or at the ambient side of panel. Numerical models showed good correlation with the fire test until ignition of the PUR foam.
Izvorni jezik
Engleski
Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti
POVEZANOST RADA
Projekti:
--KK.01.1.1.07.0060 - Kompozitni lagani panel s integriranom nosivom konstrukcijom (KLIK) (Banjad Pečur, Ivana) ( CroRIS)
Ustanove:
Građevinski fakultet, Zagreb