20.500.12556/RUL-173920 Lastnosti protipožarnih materialov za notranja vrata ob odzivu na ogenj Fire-resistant properties of interior door materials in response to fire V magistrskem delu obravnavamo problematiko izbire ustrezne sredice za notranja protipožarna vrata, ki morajo zagotavljati požarno odpornost razreda EI30 ali EI60, hkrati pa ne smejo presegati dopustne mase, saj prevelika gostota materiala otežuje izdelavo in montažo vratnih kril. Namen raziskave je bil primerjati različne materiale glede na njihovo požarno odpornost in težo ter izpostaviti tiste, ki združujejo obe zahtevi. V raziskavo smo vključili ekspandirano pluto, iverokal debeline 42 mm in 32 mm, ploščo iz vermikulita, kameno volno in ognjevarno iverno ploščo, poleg tega smo testirali še vezano ploščo in ploščo MDF, ki sta pomembna dela v sestavu vratnih kril. Preizkušanje materialov smo izvedli po standardni metodi SIST EN ISO 11925-2:2020 (preizkus z enim gorilnikom), pri čemer smo spremljali višino poškodbe in pojav vžiga. In po nestandardni metodi vroče plošče, kjer smo spremljali izgubo mase, spremembo debeline, spremembo temperature in hitrost odgorevanja. Po preizkusih smo vzorce analizirali z digitalnim mikroskopom, kjer smo merili debelino piroliziranega in odgorelega sloja. Rezultati vseh meritev so pokazali, da so najvišjo odpornost dosegli ekspandirana pluta, iverokal 42 mm, vermikulit, kamena volna in ognjevarna iverna plošča. Najnižjo težo pa so dosegli sestavi s pluto, iverokal 42 mm, vermikulit, iverokal 32 mm in kamena volna. Materiali, ki združujejo oba cilja, so ekspandirana pluta, iverokal 42 mm, vermikulit in kamena volna. Slednja materiala sta anorganska, zato velja poudariti, da kljub dobrim protipožarnim lastnostim zahtevata posebno obdelavo tako pri razrezu kot tudi pri lepljenju. In the master's thesis, we address the issue of choosing a suitable core for interior fire doors, which must provide fire resistance of class EI30 or EI60, but at the same time must not exceed the permissible mass, since excessive material density makes it difficult to manufacture and install door leaves. The purpose of the research was to compare different materials regarding their fire resistance and weight, and to highlight those that combine both requirements. We included expanded cork, 42 mm and 32 mm thick chipboard, vermiculite board, rock wool and fireproof particleboard in the research, and also tested plywood and MDF, which are important parts in the composition of door leaves. The materials were tested according to the standard method SIST EN ISO 11925-2:2020 (single flame test), where we monitored the height of damage and the occurrence of ignition, and also according to the non-standard hot plate method, where we monitored mass loss, change in thickness, change in temperature and burning rate. After the tests, the samples were analysed with a digital microscope, where the thickness of the pyrolyzed and burned layer was measured. The results of all measurements showed that the highest resistance was achieved by expanded cork, 42 mm particleboard, vermiculite, rock wool and fireproof particleboard. The lowest weight was achieved by compositions with cork, 42 mm chipboard, vermiculite, 32 mm chipboard and rock wool. The materials that combine both goals are expanded cork, 42 mm particle board, vermiculite and rock wool. The latter materials are inorganic, so it is worth emphasizing that despite their good fire-proofing properties, they require special processing both when cutting and gluing. protipožarna vrata odziv na ogenj gostota sredica vratno krilo ekspandirana pluta fire-resistant doors reaction to fire door leaves material density expanded cork particleboard true false false [F. Osvald] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2025-09-25 08:15:42 2025-09-25 08:15:47 2025-11-15 03:52:22 0000-00-00 00:00:00 2025 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*843:692.817.1 266201 251865859 53617.pdf 53617.pdf 1 5682CDB140EE89FF92FE2F679A0E8D0F 87b92064f2b4afef09de991d5580066b4c79b4703676a5d8999541dc518947e5 e32c6fd9-99d6-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=218624 Biotehniška fakulteta 0 0 0