The Experts below are selected from a list of 93 Experts worldwide ranked by ideXlab platform
Lazaros Tsantaridis - One of the best experts on this subject based on the ideXlab platform.
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Durability of the reaction to fire performance for fire retardant treated (FRT) wood products in Exterior Applications – a ten years report
MATEC Web of Conferences, 2016Co-Authors: Birgit Ostman, Lazaros TsantaridisAbstract:Several long term experimental studies on the maintained reaction to fire performance of fire retardant treated (FRT) wood products over time are presented. They are performed according to a European system based on earlier Nordic and North American systems and include accelerated ageing according to different procedures and natural weathering up to ten years. Main conclusions are: The hygroscopic properties are unchanged compared to untreated wood for most FRT wood products used commercially. The reaction to fire properties of FRT wood may be maintained after accelerated and natural ageing if the retention levels are high enough, but several FRT wood products loose most of their improved reaction to fire properties during weathering. Paint systems contribute considerably to maintain of the fire performance at Exterior Application and are usually needed to maintain the fire performance after weathering.
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durability of the reaction to fire performance for fire retardant treated frt wood products in Exterior Applications a ten years report
2nd International Seminar for Fire Safety of Facades Lund Sweden May 2016. (MATEC Web of Conferences Volume 46 2016 ), 2016Co-Authors: Birgit Ostman, Lazaros TsantaridisAbstract:Several long term experimental studies on the maintained reaction to fire performance of fire retardant treated (FRT) wood products over time are presented. They are performed according to a European system based on earlier Nordic and North American systems and include accelerated ageing according to different procedures and natural weathering up to ten years. Main conclusions are: The hygroscopic properties are unchanged compared to untreated wood for most FRT wood products used commercially. The reaction to fire properties of FRT wood may be maintained after accelerated and natural ageing if the retention levels are high enough, but several FRT wood products loose most of their improved reaction to fire properties during weathering. Paint systems contribute considerably to maintain of the fire performance at Exterior Application and are usually needed to maintain the fire performance after weathering.
Harun Jalaluddin - One of the best experts on this subject based on the ideXlab platform.
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Development a new method for pilot scale production of high grade oil palm plywood: Effect of resin content on the mechanical properties, bonding quality and formaldehyde emission of palm plywood
Materials and Design, 2013Co-Authors: Yeoh Beng Hoong, Antonio Pizzi, Yueh Feng Loh, Luqman Abd Chuah, Idrus Juliwar, Md Tahir Paridah, Harun JalaluddinAbstract:The main objectives of this research were to investigate the formaldehyde emission, some mechanical properties and bonding quality of oil palm trunk (OPT) plywood treated with low molecular weight phenol-formaldehyde (LmwPF), as affected by resin concentration. The mechanical properties are affected by different of amount resin solid contents used. The OPT veneer were treated at either 40%, 32%, 23% or 15% of resin concentration and 12 mm thickness of 3-ply plywood panel were manufactured for each group. In this study the formaldehyde emission, modulus of rupture (MOR), modulus of elasticity (MOE) and bonding quality (shear strength) of OPT plywood were determined. The results revealed that the resin-treatment method was tend to significantly improved the mechanical properties of the OPT plywood panel in which increased solid absorption gives better mechanical properties. Apparently, high mechanical properties were obtained for panel manufacturer from veneer treated with 32% and 40% resin content. The resin-treated OPT plywood provided superior mechanical strength with improvements at least 202% MOE and 159% MOR compared to commercial OPT plywood. Whereas, mechanical properties of the resin-treated OPT plywood were drastically decrease with increasing the water substitution. Formaldehyde emission content of OPT panels decreased upon reduction of resin content into treatment process and were significant at resin concentration. The resin-treated OPT panels at 32% solid content provided a reasonable amount of free formaldehyde (0.359 mg/L) which attained F**** according to Japanese Agriculture Standard (JAS). The shear strength of resin-treated OPT plywood panel with 32% and 40% resin content achieved minimum requirements according to the standard European Norms EN 314-1 and EN 314-2 for the interior and Exterior Application.
Birgit Ostman - One of the best experts on this subject based on the ideXlab platform.
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Durability of the reaction to fire performance for fire retardant treated (FRT) wood products in Exterior Applications – a ten years report
MATEC Web of Conferences, 2016Co-Authors: Birgit Ostman, Lazaros TsantaridisAbstract:Several long term experimental studies on the maintained reaction to fire performance of fire retardant treated (FRT) wood products over time are presented. They are performed according to a European system based on earlier Nordic and North American systems and include accelerated ageing according to different procedures and natural weathering up to ten years. Main conclusions are: The hygroscopic properties are unchanged compared to untreated wood for most FRT wood products used commercially. The reaction to fire properties of FRT wood may be maintained after accelerated and natural ageing if the retention levels are high enough, but several FRT wood products loose most of their improved reaction to fire properties during weathering. Paint systems contribute considerably to maintain of the fire performance at Exterior Application and are usually needed to maintain the fire performance after weathering.
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durability of the reaction to fire performance for fire retardant treated frt wood products in Exterior Applications a ten years report
2nd International Seminar for Fire Safety of Facades Lund Sweden May 2016. (MATEC Web of Conferences Volume 46 2016 ), 2016Co-Authors: Birgit Ostman, Lazaros TsantaridisAbstract:Several long term experimental studies on the maintained reaction to fire performance of fire retardant treated (FRT) wood products over time are presented. They are performed according to a European system based on earlier Nordic and North American systems and include accelerated ageing according to different procedures and natural weathering up to ten years. Main conclusions are: The hygroscopic properties are unchanged compared to untreated wood for most FRT wood products used commercially. The reaction to fire properties of FRT wood may be maintained after accelerated and natural ageing if the retention levels are high enough, but several FRT wood products loose most of their improved reaction to fire properties during weathering. Paint systems contribute considerably to maintain of the fire performance at Exterior Application and are usually needed to maintain the fire performance after weathering.
Yeoh Beng Hoong - One of the best experts on this subject based on the ideXlab platform.
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Development a new method for pilot scale production of high grade oil palm plywood: Effect of resin content on the mechanical properties, bonding quality and formaldehyde emission of palm plywood
Materials and Design, 2013Co-Authors: Yeoh Beng Hoong, Antonio Pizzi, Yueh Feng Loh, Luqman Abd Chuah, Idrus Juliwar, Md Tahir Paridah, Harun JalaluddinAbstract:The main objectives of this research were to investigate the formaldehyde emission, some mechanical properties and bonding quality of oil palm trunk (OPT) plywood treated with low molecular weight phenol-formaldehyde (LmwPF), as affected by resin concentration. The mechanical properties are affected by different of amount resin solid contents used. The OPT veneer were treated at either 40%, 32%, 23% or 15% of resin concentration and 12 mm thickness of 3-ply plywood panel were manufactured for each group. In this study the formaldehyde emission, modulus of rupture (MOR), modulus of elasticity (MOE) and bonding quality (shear strength) of OPT plywood were determined. The results revealed that the resin-treatment method was tend to significantly improved the mechanical properties of the OPT plywood panel in which increased solid absorption gives better mechanical properties. Apparently, high mechanical properties were obtained for panel manufacturer from veneer treated with 32% and 40% resin content. The resin-treated OPT plywood provided superior mechanical strength with improvements at least 202% MOE and 159% MOR compared to commercial OPT plywood. Whereas, mechanical properties of the resin-treated OPT plywood were drastically decrease with increasing the water substitution. Formaldehyde emission content of OPT panels decreased upon reduction of resin content into treatment process and were significant at resin concentration. The resin-treated OPT panels at 32% solid content provided a reasonable amount of free formaldehyde (0.359 mg/L) which attained F**** according to Japanese Agriculture Standard (JAS). The shear strength of resin-treated OPT plywood panel with 32% and 40% resin content achieved minimum requirements according to the standard European Norms EN 314-1 and EN 314-2 for the interior and Exterior Application.
K. Schmidt - One of the best experts on this subject based on the ideXlab platform.
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Additional tests for the ageing behaviour of filled glueline products
1994Co-Authors: H. J. Deppe, K. SchmidtAbstract:In addition to tests that have already been published (Deppe and Schmidt 1993) on glulam with different filled PF/RF and with PVAc-resins, further test results are reported. These resins were tested over a period of 48 weeks in a special BAM accelerating ageing process. This test simulates a period of approximately 15 years Exterior Application. During this time the longtime behaviour of creep was analysed. As indicated by the results the glueline stability of PF/RF-resin proved to be outstanding even in a high filling rate, while the PVAc-glueline quality was hardly improved by filling extension for the joint stability.
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Ergänzende Untersuchungen zum Alterungsverhalten gestreckter Holzmontageverleimungen
Holz als Roh- und Werkstoff, 1994Co-Authors: H. J. Deppe, K. SchmidtAbstract:In addition to tests that have already been published (Deppe and Schmidt 1993) on glulam with different filled PF/RF and with PVAc-resins, further test results are reported. These resins were tested over a period of 48 weeks in a special BAM accelerating ageing process. This test simulates a period of approximately 15 years Exterior Application. During this time the longtime behaviour of creep was analysed. As indicated by the results the glueline stability of PF/RF-resin proved to be outstanding even in a high filling rate, while the PVAc-glueline quality was hardly improved by filling extension for the joint stability. In Ergänzung zu bereits durchgeführten Untersuchungne (Deppe und Schmidt 1993) werden Testresultate an unterschiedlich gestreckten Phenol-Resocrinharz-(PF/RF) und Polyvinylacetat- (PVAc) Holzverleimungen vorgestellt, die über einen Zeitraum von 48 Wochen mit einem speziellen Alterungstest belastet wurden. Diese Belastungszeit simuliert nach Erfahrungen der BAM vergleichsweise einen Freibewitterungszeitraum von rund 15 Jahren. Untersucht wurde zusätzlich das Dauerstandverhalten der Verleimungen. Nach bislang vorliegenden Ergebnissen ist die Fugenbeständigkeit der PF/RF-Harze auch bei hohen Streckungsgraden als sehr gut zu bezeichnen, während bei PVAc-Verklebungen die geringe Fugenstabilität durch die Streckung nur unwesentlich verbessert wird.
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Ergänzende Untersuchungen zum Alterungsverhalten gestreckter Holzmontageverleimungen
Holz als Roh- und Werkstoff, 1994Co-Authors: H. J. Deppe, K. SchmidtAbstract:In addition to tests that have already been published (Deppe and Schmidt 1993) on glulam with different filled PF/RF and with PVAc-resins, further test results are reported. These resins were tested over a period of 48 weeks in a special BAM accelerating ageing process. This test simulates a period of approximately 15 years Exterior Application. During this time the longtime behaviour of creep was analysed. As indicated by the results the glueline stability of PF/RF-resin proved to be outstanding even in a high filling rate, while the PVAc-glueline quality was hardly improved by filling extension for the joint stability.
