Monitoring of Weight Loss of Fibreboard During Influence of Flame

Kadlicova, Patricia; Gašpercová, Stanislava; Osvaldová, Linda Makovická

doi:10.1016/j.proeng.2017.06.068

Cited by 10 publications

(5 citation statements)

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“…Se midió el tiempo necesario para que tres superficies de la probeta mostraran una flama durante al menos cinco segundos y se definió como el tiempo de ignición (t ign ). La pérdida de masa de la probeta (Δm) se calculó con la proporción entre su peso inicial antes de su exposición al fuego y su peso final después de cinco minutos de exposición [26].…”

Section: Materiales Y Métodosunclassified

“…La literatura reporta principalmente dos clases de pruebas de reacción al fuego: las de descomposición térmica y las de calorimetría [4]. Otros autores configuran pruebas adaptadas a sus objetivos de investigación [21,26]. De tal forma que los corolarios son particulares a cada material y diseño experimental, haciendo difícil la generalización de indicadores o criterios para la comparación de resultados.…”

Section: Introductionunclassified

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Reacción al fuego de madera sólida de Pinus pseudostrobus y de tableros de madera enlistonados, contrachapados, de fibra de media densidad y de astillas orientadas: Estudio comparativo del tiempo de ignición y de la pérdida de masa

Castellanos

Alquicira

González

et al. 2023

ACI Av. Cienc. Ing. (Quito)

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La madera y los tableros de madera que forman parte de la estructura y/o mobiliario de edificaciones, en caso de incendio, contribuyen a la expansión del fuego. El objetivo de la investigación fue determinar el tiempo de ignición y la pérdida de masa en pruebas de reacción al fuego en probetas de Pinus pseudostrobus, tableros enlistonados, contrachapados, de media densidad y de astillas orientadas. Se prepararon 35 probetas de pequeñas dimensiones de cada material y se calculó su contenido de humedad y su densidad. Se realizaron pruebas de reacción al fuego y se determinó el tiempo de ignición y la pérdida de masa. La densidad aumenta en el orden siguiente: tableros enlistonados, tableros contrachapados, P. pseudostrobus, tableros de media densidad y tableros de astillas orientadas. Comparativamente, el tiempo de ignición de los enlistonados y de media densidad son similares y los más cortos; el tiempo correspondiente a los contrachapados es cercano al de la madera de P. pseudostrobus; y el tiempo de ignición de los tableros de astillas orientadas es el más largo. La pérdida de masa de la madera de P. pseudostrobus es menor comparativamente con la de los tableros contrachapados y de astillas orientadas. La pérdida de masa de los tableros de fibra de media densidad y enlistonados es mayor y similar entre sí. Para los cuatro tableros de madera estudiados, a medida que su tiempo de ignición aumenta, su pérdida de masa disminuye.

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Section: Materiales Y Métodosunclassified

Section: Introductionunclassified

Reacción al fuego de madera sólida de Pinus pseudostrobus y de tableros de madera enlistonados, contrachapados, de fibra de media densidad y de astillas orientadas: Estudio comparativo del tiempo de ignición y de la pérdida de masa

Castellanos

Alquicira

González

et al. 2023

ACI Av. Cienc. Ing. (Quito)

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“…In Europe, the wood industry comprises approximately 400,000 enterprises, representing approximately one fifth of all manufacturing businesses [2]. One of the main drawbacks of wood and other wood-based materials in all forms, when used as a building material, is its flammability [3][4][5][6][7][8][9][10], limiting its fire resistance [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Effect of Spruce Wood Density on Selected Fire-Technical Parameters during Thermal Loading

Mitrenga,

Osvaldová,

Konárik

2023

Applied Sciences

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The paper evaluates the effect of spruce wood density on the parameters of mass loss and mass loss rate during exposure to thermal load. The intention was to determine whether the effect of density is still evident after the application of flame retardants to the test samples. Groups of samples with different densities under the same retardant treatment were compared. The differences in densities of the compared groups of samples were different for each flame retardant. Water-soluble flame retardants based on inorganic salts were used. For testing, a simple test method was used in which the samples were exposed to direct flame from a Bunsen burner. The results of the study are the findings of how wood density affects the burning process of the samples treated with flame retardants. Statistical evaluation of the experimental results shows a significant effect of wood density on the monitored parameters even when flame retardants are used. For a difference in sample densities of 244 kg·m−3, there was a density dependence of the mass loss rate, with the lower density samples having a higher mass loss rate (0.158%·s−1) over the whole experimental period compared to the higher density samples (0.077%·s−1). The ANOVA test also demonstrated the influence of density on the mass loss of the samples at the above density difference. At lower density differences (51 kg·m−3 and below), the effect of sample density on the observed parameters was no longer evident. The fire spread rate parameter was also investigated. Here, a linear correlation between the difference in sample densities and the difference in the values of the above parameter at high and low densities is observed with a reliability coefficient R2 = 0.99.

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“…Eco-panel is a fully recyclable material and, as a building element, is a secondary product made out of straw with a casing of recycled paperboard or cardboard [ 3 ]. Eco-panel is produced by pressing straw at 180–220 °C [ 4 ], using pressure (15 MPa), without any binders (pure straw core), and subsequently gluing it together on both sides with recycled cardboard or recycled paper [ 5 , 6 ]. A disadvantage of this material is that it is relatively heavy [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Straw-Based Eco-Panel Using a Small Ignition Initiator

et al. 2021

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Straw, a natural cellulose-based material, has become part of building elements. Eco-panels, compressed straw in a cardboard casing, is used as building insulation. Eco-panel is a secondary product with excellent insulating properties. If suitably fire-treated (insulation and covering), straw panels’ fire resistance may be increased. This contribution deals with monitoring the behavior of eco-panels exposed to a small ignition initiator (flame). The samples consisted of compressed straw boards coated with a 40 mm thick cardboard. Samples were exposed to a flame for 5 and 10 min. The influence of the selected factors (size of the board, orientation of flame with the sample) were compared on the basis of experimentally obtained data: mass loss. The results obtained do not show a statistically significant influence of the position of the sample and the initiating source (flame). The results presented in the article confirm the justifiability of fire tests. As the results of the experiments prove, the position of a small burner for igniting such material is also important. Such weakness of the material can also be eliminated by design solutions in the construction. The experiment on larger samples also confirmed the justifiability of fire tests along with the need for flame retardancy of such material for its safe application in construction.

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Monitoring of Weight Loss of Fibreboard During Influence of Flame

Cited by 10 publications

References 1 publication

Reacción al fuego de madera sólida de Pinus pseudostrobus y de tableros de madera enlistonados, contrachapados, de fibra de media densidad y de astillas orientadas: Estudio comparativo del tiempo de ignición y de la pérdida de masa

Reacción al fuego de madera sólida de Pinus pseudostrobus y de tableros de madera enlistonados, contrachapados, de fibra de media densidad y de astillas orientadas: Estudio comparativo del tiempo de ignición y de la pérdida de masa

Effect of Spruce Wood Density on Selected Fire-Technical Parameters during Thermal Loading

Experimental Study of Straw-Based Eco-Panel Using a Small Ignition Initiator

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