Experimental study of fire resistant board configurations under standard fire conditions

Steau, Edward; Mahendran, Mahen; Poologanathan, Keerthan

doi:10.1016/j.firesaf.2020.103153

Cited by 13 publications

(9 citation statements)

References 17 publications

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“…In addition, Gunalan and Mahendran [36] predicted the fire-resistance levels (FRL) of cold-formed steel wall panels to LSF standard fire. Steau et al [37] experimentally studied fire-resistant board structures that were exposed to standard fire in order to increase the FRL. Gunalan et al [38] experimentally studied the fire performance of load-bearing cold-formed steel wall panels under standard fire conditions, and Ariyanayagam and Mahendran [39] studied the same phenomena under realistic-design fire conditions and established fire design rules [40].…”

Section: Fire Performance Of Construction Materialsmentioning

confidence: 99%

Finite Element Modelling to Predict the Fire Performance of Bio-Inspired 3D-Printed Concrete Wall Panels Exposed to Realistic Fire

et al. 2022

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Large-scale additive manufacturing (AM), also known as 3D concrete printing, is becoming well-recognized and, therefore, has gained intensive research attention. However, this technology requires appropriate specifications and standard guidelines. Furthermore, the performance of printable concrete in elevated temperature circumstances has not yet been explored extensively. Hence, the authors believe that there is a demand for a set of standardized findings obtained with the support of experiments and numerical modelling of the fire performance of 3D-printed concrete structural elements. In general, fire experiments and simulations focus on ISO 834 standard fire. However, this may not simulate the real fire behaviour of 3D-printed concrete walls. With the aim of bridging this knowledge disparity, this article presents an analysis of the fire performance of 3D-printed concrete walls with biomimetic hollow cross sections exposed to realistic individual fire circumstances. The fire performance of the non-load-bearing 3D-printed concrete wall was identified by developing a suitable numerical heat transfer model. The legitimacy of the developed numerical model was proved by comparing the time–temperature changes with existing results derived from fire experiments on 3D-printed concrete walls. A parametric study of 96 numerical models was consequently performed and included different 3D-printed concrete wall configurations under four fire curves (standard, prolonged, rapid, and hydrocarbon fire). Moreover, 3D-printed concrete walls and mineral wool cavity infilled wall panels showed enhanced fire performance. Moreover, the cellular structures demonstrated superior insulation fire ratings compared to the other configurations.

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Section: Fire Performance Of Construction Materialsmentioning

confidence: 99%

Finite Element Modelling to Predict the Fire Performance of Bio-Inspired 3D-Printed Concrete Wall Panels Exposed to Realistic Fire

et al. 2022

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“…In most cases, steel is often incorporated in the form of sandwich cladding panels with mineral wool (MW), polyurethane (PUR), or polyisocyanurate (PIR). The U-value of such panels is highly dependent on the type of insulation and thickness but generally ranges from 0.11 W/(m 2 K) to 0.56 W/(m 2 K) [37][38][39]. This means that the use of sandwich cladding panels can potentially meet the NZEB requirements, as they comply with the prescribed thermal transmittance values (U-values).…”

Section: Sheathing Boards and Finishing Layersmentioning

confidence: 99%

Development of Lightweight Steel Framed Construction Systems for Nearly-Zero Energy Buildings

et al. 2022

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Light steel frame (LSF) building systems offer high structural resilience, lower costs due to fast prefabrication, and high ability to recycle and reuse. The main goal of this paper was to provide state-of-the-art main components for such systems with the intention to be implemented for use in nearly-zero energy buildings (NZEBs). A brief historical outline of the development of LSF systems was given, and the key parameters affecting the design and use of LSF systems were discussed. The influence of the individual components of the LSF system (steel studs, sheathing boards, and insulation materials) was then thoroughly discussed in light of relevant research on energy efficiency and other important properties (such as sound protection and fire resistance). Web of Science and Scopus databases were used for this purpose, using relevant key words: LSF, energy efficiency, sheathing boards, steel studs, insulation, etc. Several research gaps were identified that could be used for development and future research on new LSF systems. Finally, based on the analysis of each component, an innovative LSF composite wall panel was proposed which will be the subject of the authors’ future research. Conducted preliminary analysis showed low thermal transmittance of the system and indicates the path of its further research.

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“…Fire safety of a building system plays a vital role from preventing the building collapse to protecting building occupants if fire exposure was to occur [1].…”

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]. The use of thin steel sheathing can provide enhanced stiffness to structures while also improving strength, impact resistance, blast resistance, mechanical or seismic vibration resistance and durability [1].…”

Section: Introductionmentioning

confidence: 99%

“…However, the dehydration process severely deteriorates its integrity causing the material to lose most of the ambient temperature strength [1,13]. The use of thin steel sheathing can provide enhanced stiffness to structures while also improving strength, impact resistance, blast resistance, mechanical or seismic vibration resistance and durability [1].…”

Section: Introductionmentioning

confidence: 99%

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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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Experimental study of fire resistant board configurations under standard fire conditions

Cited by 13 publications

References 17 publications

Finite Element Modelling to Predict the Fire Performance of Bio-Inspired 3D-Printed Concrete Wall Panels Exposed to Realistic Fire

Finite Element Modelling to Predict the Fire Performance of Bio-Inspired 3D-Printed Concrete Wall Panels Exposed to Realistic Fire

Development of Lightweight Steel Framed Construction Systems for Nearly-Zero Energy Buildings

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

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