UTJECAJ POLIURETANSKE PJENE NA PONAŠANJE LAGANIH KOMPOZITNIH PANELA U POŽARNIM UVJETIMA

master's thesis

• Title (english): THE INFLUENCE OF POLYURETHENE FOAMS ON THE BEHAVIOR OF LIGHTWEIGHT COMPOSITE PANELS IN FIRE CONDITIONS
• Author: Antonija Ivanović
• Mentor: Marija Jelčić Rukavina (mentor)
• Committee member: Marija Jelčić Rukavina (predsjednik povjerenstva)
• Committee member: Marijana Serdar (član povjerenstva)
• Committee member: Marijan Skazlić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; Zagreb
• Defense date and country: 2023-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

Osnovni cilj ovog diplomskog rada je, na temelju eksperimentalnog ispitivanja, procijeniti utjecaj poliuretanske pjene na ponašanje laganih kompozitnih panela u požarnim uvjetima. Zbog toga je ispitana otpornost na požar dvaju uzorka laganih kompozitnih panela koji su se sastojali od čeličnog okvira i sa po dva sloja gips-vlaknastih ploča s obje strane. Jedan uzorak je sadržavao poliuretansku pjenu kao toplinsko-izolacijski sloj, dok je drugi (referentni) bio prazan. Kroz ispitivanje je praćen razvoj temperatura kroz presjek panela te parametri kojima se dokazuje nosivost, izolacija i cjelovitost kod standardiziranog ispitivanja otpornosti na požar konstrukcijskih elemenata. Dodatno je provedena termogravimetrijska analiza korištene PUR pjene. Dobiveni rezultati pokazuju da gorivost poliuretanske pjene smanjuje otpornost na požar panela, ali se korištenjem više slojeva gips-vlaknastih ploča može osigurati otpornost panela od najmanje 60 minuta.

Abstract (english)

The energy efficiency requirements of buildings force an increased use of thermal insulation materials in buildings, which can be of inorganic or organic origin, i.e., non-combustible or combustible. The main objective of this work is to evaluate, through experimental tests, the influence of polyurethane foam (PUR) on the behavior of lightweight composite panels under conditions of high fire temperatures. For this reason, the fire resistance of two specimens of lightweight composite panels consisting of a steel frame and two layers of gypsum fiberboard was tested. One specimen contained PUR foam as a thermal insulation layer, while the other (reference) was blank. During the test, the temperature evolution in the cross-section of the panel was monitored, as well as the parameters to demonstrate the load-bearing capacity, insulation and integrity of the standardized fire resistance test of building components. In addition, a thermogravimetric analysis of the PUR foam used was performed. The results obtained show that the flammability of the polyurethane foam reduces the fire resistance of the panel, but the use of multiple layers of gypsum fiberboard can ensure the resistance of the panel of at least 60 minutes.

• Keywords: lagani kompozitni paneli; gips-vlaknaste ploče; poliuretanska pjena; otpornost na požar
• Keywords (english): light weight composite panels; gypsum-fiber boards; polyurethane foam; fire resistance
• Language: croatian
• URN:NBN: urn:nbn:hr:237:884475
• Study programme: Title: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures; Course: Construction Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-10-25 08:01:21