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Febrianto Fauzi - One of the best experts on this subject based on the ideXlab platform.

  • Ketahanan Oriented Strand Board Bambu Betung dengan Perlakuan Steam pada Strand terhadap Cuaca (Durability of Oriented Strand Board Prepared from Steam -treated Betung Bamboo to Natural Weathering)
    Masyarakat Peneliti Kayu Indonesia, 2020
    Co-Authors: Maulana Sena, Muhammad Qa Damanik, Marwanto Marwanto, Maulana Muhammad, Fatrawana Adesna, Sumardi Ihak, Wistara, Nyoman J, Febrianto Fauzi
    Abstract:

    Penelitian ini bertujuan untuk mengevaluasi ketahanan Oriented Strand Board (OSB) dari bambu betung (Dendrocalamus asper) (BOSB) dengan perlakuan steam pada Strand terhadap cuaca. Strand diberi perlakuan steam pada suhu 126 ºC di bawah tekanan 0,14 MPa selama 1 jam. Tiga lapis BOSB dibuat dengan kerapatan target 0,7 g cm-3 yang direkat dengan perekat fenol formaldehida (PF) dengan konsentrasi 8%. Parafin ditambahkan sebanyak 1% dari berat kering oven Strand. Bamboo Oriented Strand Board dipaparkan pada cuaca terbuka di Dramaga, Kabupaten Bogor Jawa Barat (6°34’15.72’’Selatan 106°44’17.30’’Timur). Evaluasi sifat fisis dan mekanis BOSB sebelum dan sesudah dipaparkan di udara selama 2 dan 3 bulan dilakukan berdasarkan standar JIS A 5908:2003. Penentuan nilai nisbah retensi MOE dan MOR dilakukan dengan membandingkan nilai MOE dan MOR sebelum dan sesudah pemaparan. Hasil penelitian menunjukkan bahwa perlakuan steam pada Strand dapat meningkatkan stabilitas dimensi dan sifat mekanis BOSB. Pemaparan BOSB pada cuaca terbuka dapat menurunkan stabilitas dimensi dan kekuatan BOSB. Ketahanan BOSB dengan perlakuan steam pada Strand terhadap pemaparan alami lebih tinggi dibandingkan dengan tanpa perlakuan steam

  • Perubahan Kadar Komponen Kimia pada Tiga Jenis Bambu Akibat Proses Steam dan Pembilasan (Chemical Components Changed in Three Bamboo Species Treated by Steaming and Washing Processes)
    Masyarakat Peneliti Kayu Indonesia, 2019
    Co-Authors: Murda, Rio A, Maulana Sena, Maulana Muhammad, Nawawi, Deded S, Park Se-hwi, Febrianto Fauzi
    Abstract:

    Bamboo has good prospects for composite raw materials such as for Oriented Strand Board (OSB) product. Previous research has shown that steam and rinsing with water and 1% NaOH solution treatments of Strand improved the properties of OSB, which might be caused by changing in the chemical components content of bamboo. This study aimed to determine the chemical components content change of sembilang bamboo (Dendrocalamus giganteus Munro), black bamboo (Gigantochloa nigrocillata Kurz.), and tali bamboo (G. apus (Bl.ex Schult.f.)) due to steam and rinsing treatment. The chemical components of bamboo were analyzed referring to the Technical Association of the Pulp and Paper Industry standards (TAPPI). The results showed that the most significant changes in the chemical components content of bamboo occured for holocellulose, hemicellulose, extractive contents, and pH values. The decreasing of hemicellulose, extractive contents, and increasing pH values due to the steam and 1% NaOH rinsing treatment may improve the adhesion quality of OSB

  • Pengaruh Perlakuan Steam pada Strand dan Shelling Ratio terhadap Sifat Fisis dan Mekanis Oriented Strand Board Bambu (Effect of Steam Treatment on Strand and Shelling Ratio on the Physical and Mechanical Properties of Bamboo Oriented Strand Board)
    Masyarakat Peneliti Kayu Indonesia, 2018
    Co-Authors: Maulana Sena, Sumardi Ihak, Wistara, Nyoman J, Purusatama, Byantara D, Febrianto Fauzi
    Abstract:

    The objective of this study was to evaluate the physical and mechanical properties of bamboo Oriented Strand Board (OSB) from andong (Gigantochloa pseudoarundinacea) with steam treatment on Strand at various shelling ratios. Strands were steam-treated at 126 ºC for 1 h under 0.14 MPa pressure. Three-layer OBSB with the core layer perpendicular to the surface at various shelling ratio (15/70/15, 20/60/20, 25/50/25, 30/40/30) was formed and bonded with 8% of phenol formaldehyde resin. Wax was added amount of 1% based on oven dry Strand. The evaluation of physical and mechanical properties of the Boards was conducted in accordance to the JIS A 5908:2003 standard. Steam treatment tended to increase the dimensional stability and mechanical properties of OBSB from andong. The higher shelling ratio increased the parallel flexural properties, but decreased the perpendicular flexural properties

  • Properties of Oriented Strand Board Prepared from Steam Treated Bamboo Strands under Various Adhesive Combinations
    Masyarakat Peneliti Kayu Indonesia, 2017
    Co-Authors: Adrin Adrin, Febrianto Fauzi, Sadiyo Sucahyo
    Abstract:

    The objectives of this research were to analyze the physical and mechanical properties of Oriented Strand Board (OSB) prepared from steam treated betung bamboo (Dendrocalamus asper) Strands under various adhesive combinations. The Strands were steamed at 126 °C for 1 h with the pressure of 1.4 kg cm-2 prior to be blended with adhesive. Three-layered OSBs with the core layer orientation perpendicular to the face layers were prepared by bonding using 5% methylene diphenyl diisocyanate (ISO), 7% phenol formaldehyde (PF), combination of ISO:PF:ISO and PF:ISO:PF adhesives. Paraffin in amount of 1% was added as an additive. The Strand ratio for face, core, and back layers was 1:1:1, respectively.The results indicated that the physical properties i.e., water absorption and thickness swelling, and mechanical properties i.e., modulus of rupture and modulus of elasticity both parallel and perpendicular to the grain direction and internal bond of OSB bonded ISO and combination of ISO:PF:ISO adhesives were much better than that of bonded with combination PF:ISO:PF and PF adhesives. Almost all parameters of OSB tested in this experiment were higher than the minimum criteria requirement of CSA 0437.0 (Grade 0-2) standard, except the value of MOE perpendicular to the grain direction of OSB bonded with PF adhesive.Key words: betung bamboo, isocyanate, Oriented Strand Board, phenol formaldehyde, stea

  • Steaming Effect on Natural Durability of Bamboo Oriented Strand Board against Termites and Powder Post Beetle
    Masyarakat Peneliti Kayu Indonesia, 2017
    Co-Authors: Febrianto Fauzi, Purnamasari Intan, Arinana Arinana, Gumilang Adiyantara, Kim, Nam H
    Abstract:

    The objective of this research was to evaluate the resistance of bamboo Oriented Strand Board (BOSB) prepared from steamed and non-steamed Strands of five (5) bamboo species against subterranean termite (Coptotermes curvignathus), dry wood termite (Cryptotermes cynocephalus), and powder post beetle. The five bamboo species were betung, andong, ampel, hitam, and tali. In steaming treatment, bamboo Strands were steamed in autoclave at 126 °C and 1.4 kg cm-2 pressure for 1 h prior mixing with adhesive. Strands were bonded into BOSB by the use of commercial Phenol formaldehyde (PF) adhesive at 10% (w/w) of oven dried Strands. The resistance of BOSB against termite was done based on SNI 01.7207-2006 procedures and requirement. The results indicated that the resistance of BOSB against termites was significantly affected by bamboo species and steam treatment. The resistance of BOSB prepared from steamed bamboo Strands against C. curvignathus and C. cynocephalus was higher than that of non-steamed bamboo Strands particularly that of ampel bamboo Strands. The powder post beetle was identified as Anobium sp. Bamboo species and Strands steaming did not significantly influence the resistance of BOSBs against Anobium sp.Key words: bamboo, dry wood termite, Oriented Strand Board, powder post beetles, subterranean termit

B. W. Schafer - One of the best experts on this subject based on the ideXlab platform.

  • 2012) "Cyclic Behavior of Cold-Formed Steel Stud-to-Sheathing Connections
    2016
    Co-Authors: K. D. Peterman, N. Nakata, B. W. Schafer
    Abstract:

    This series of experiments aims to characterize the cyclic behavior of cold-formed steel (CFS) stud-to-sheathing connections. This connection provides the key energy dissipating behavior in wood sheathed CFS shear walls, and provides bracing to the studs under gravity and out-of-plane loads. A simple testing rig is developed consisting of two CFS lipped channels facing toe-to-toe connected on the flanges by sheathing (Oriented Strand Board, or gypsum Board) and cycled such that the 8 connecting fasteners experience shear. Sheathing configuration, fastener spacing, load protocol (CUREE), steel thickness, and fastener type for OSB specimens were varied to determine connection performance. The dominant role of sheathing type and stud thickness is highlighted. The cyclic behavior of the experimental results is characterized for further use in analysis of shear walls and under gravity and lateral load. The work serves as an important supplement in North American efforts to advance seismic performance-based design of CFS structures and is part of a larger effort to better understand CFS lateral force resisting systems

  • behavior and design of sheathed cold formed steel stud walls under compression
    Journal of Structural Engineering-asce, 2013
    Co-Authors: Luiz C M Vieira, B. W. Schafer
    Abstract:

    AbstractCurrently, there is a need for a design method for cold-formed steel (CFS) stud and track walls that use traditional sheathing materials to brace against compressive load. The objective of this paper is to provide a robust design method for these walls. Existing design methods are unable to handle dissimilar sheathing attached to the CFS stud flanges [e.g., Oriented Strand Board (OSB) on the exterior face and gypsum Board on the interior face] and provide no clarity on the impact of key properties including sheathing shear rigidity and stud spacing. A series of tests on axially loaded sheathed single studs and sheathed full walls using OSB, gypsum Board, or an unsheathed face (and combinations thereof) is performed to elucidate the basic behavior and limit states. The stiffness that the fastener-sheathing system supplies to the stud as bracing is characterized analytically and experimentally. The characterization clarifies how both local fastener deformations and global sheathing deformations cont...

Hong Hao - One of the best experts on this subject based on the ideXlab platform.

  • performance of structural insulated panels with rigid skins subjected to windborne debris impacts experimental investigations
    Construction and Building Materials, 2015
    Co-Authors: Wensu Chen, Hong Hao
    Abstract:

    Abstract Structural insulated panels (SIPs) are high-performance building materials used as building envelope for residential, industrial and light commercial construction. When the building envelope is impacted by windborne debris in cyclonic area, the debris might perforate the panel resulting in dominant openings. Dominant openings in the building envelope might cause differential internal pressurization and result in the damage to the whole building structure. In the present study, the dynamic response of SIPs with Extended Polystyrene (i.e., EPS) foam core sandwiched by two rigid skins of Oriented Strand Board (i.e., OSB) or fiber cement Board were experimentally investigated by using a pneumatic cannon system for windborne debris impact. The failure and damage modes under various projectile impact scenarios were observed and compared. The performances of the SIPs were examined quantitatively in terms of the projectile penetration length, and deformation and strain time histories of the back skin. The effects of various specimen configurations, impact locations, projectile impact velocities and boundary conditions on their performance were studied. The penetration resistance capacity of the SIPs against windborne debris impact was analyzed.

Fauzi Febrianto - One of the best experts on this subject based on the ideXlab platform.

  • destructive and non destructive tests of bamboo Oriented Strand Board under various shelling ratios and resin contents
    Journal of the Korean wood science and technology, 2019
    Co-Authors: Sena Maulana, Yuarsa Gumelar, Adesna Fatrawana, Muhammad Iqbal Maulana, Ihak Sumardi, Nyoman Jaya Wistara, Wahyu Hidayat, Fauzi Febrianto
    Abstract:

    The objectives of this study were to evaluate the effects of shelling ratio and resin content on the properties of bamboo Oriented Strand Board (BOSB) from betung (Dendrocalamus asper) and to determine the correlation between the results of dynamic and static bending tests. Strands were steam-treated at 126 oC for 1 h under 0.14 MPa pressure and followed by washing with 1% NaOH solution. Three-layer BOSB with the core layer perpendicular to the surface was formed with shelling ratios (face: core ratio) of 30: 70; 40: 60; 50: 50; 60: 40 and binded with 7% and 8% of phenol formaldehyde (PF) resin with the addition of 1% of wax. The evaluation of physical and mechanical properties of BOSB was conducted in accordance with the JIS A 5908: 2003 standard and the results were compared with CSA 0437.0 standard for commercial OSB (Grade O-1). Non-destructive testing was conducted using Metriguard Model 239A Stress Wave Timer which has a wave propagation time from 1 to 9,999 μs and a resolution of 1 μs. BOSB with 8% resin content showed better physical and mechanical properties than those with 7% resin content. The increase of the face layer ratio improved the strength of BOSB in parallel direction to the grain. The results suggested that shelling ratio of 50: 50 could be used as a simple way to reduce PF resin requirements from 8% to 7% and to meet the requirements of CSA 0437.0 standard. The results of non-destructive and destructive tests showed a strong correlation, suggesting that non-destructive test can be used to estimate the bending properties of BOSB.

  • properties of Oriented Strand Board made from betung bamboo dendrocalamus asper schultes f backer ex heyne
    Wood Science and Technology, 2012
    Co-Authors: Fauzi Febrianto, Wahyu Hidayat, Jin Heon Kwon, Edi Suhaimi Bakar, Gu Joong Kwon, Soon Il Hong, Namhun Kim
    Abstract:

    Bamboo has gained increasing attention as an alternative raw material for use in the manufacture of composite Boards. Three-layer OSBs were made using Betung bamboo (Dendrocalamus asper (Schultes.f) Backer ex Heyne) Strands to evaluate the effects of Strand length and pre-treatment techniques on the physical, mechanical, and durability properties. Three different Strand lengths, namely 50, 60, and 70 mm, were prepared. Prior to the manufacture into OSB, the Strands were immersed in cold water for 24 h and in 6% acetic anhydrides solution for 48 h. The OSBs were fabricated using 5% MDI resin based on the Strand dry weight. The results indicated that MOR and MOE values in perpendicular to the grain direction were much influenced by Strand length. The dimensional stability of OSB was slightly improved by immersing the Strands in acetic anhydride solution. Immersing Strands in cold water and acetic anhydride solution improved the resistance of OSB against subterranean termite (Macrotermes gylvus) attack under the adopted experimental condition. All OSB parameters manufactured in this experiment were better than the minimum requirement of CSA 0437.0 (Grade O–2) standard.

  • effect of pre treatment techniques on physical mechanical and durability properties of Oriented Strand Board made from sentang wood melia excelsa jack
    Journal of The Faculty of Agriculture Kyushu University, 2010
    Co-Authors: Apri Heri Iswanto, Fauzi Febrianto, Imam Wahyudi, Won Joung Hwang, Seonhwa Lee, Jin Heon Kwon, Sung Min Kwon, Namhun Kim, Tetsuo Kondo
    Abstract:

    25%, 50% and 25%, respectively. Methane di-isocyanate (MDI, Type H3M) resin was used as an adhesive in amount of 7%. The amount of paraffin used was 1% based on oven dried Strand. The Strands were immersed in hot water at 80 °C for 2 hours, immersed in 2.5% of CCB preservative solution for 48 hours and steamed at 126 °C at 1.4 kg.cm -2 pressure for 1 hour prior to be blended with adhesive. The results indicated that OSB manufactured mostly consisted of quarter round and flat Strands with high slenderness ratio and high aspect ratio. Pre-treatment of Strand by immersing Strands in hot water, immersing in preservative solution and steamed resulted in improvement of water absorption of Board, some mechanical properties and dura- bility of OSB. Introducing 2.5% CCB preservative on the OSB significantly improved durability of OSB against termite attack but did not influence the strength of OSB. Untreated OSB, OSBs prepared from pre- served Strands and steamed Strands can be used for exterior application, while OSB prepared from hot water immersed Strands only can be used for interior application. All OSB parameters manufactured in this experiment were superior when compared with the minimum requirement of CSA 0437.0 standard for Grade O-2 OSB.

Wensu Chen - One of the best experts on this subject based on the ideXlab platform.

  • experimental and numerical study of basalt fibre cloth strengthened structural insulated panel under windborne debris impact
    Journal of Reinforced Plastics and Composites, 2016
    Co-Authors: Qing Fei Meng, Wensu Chen
    Abstract:

    Strong wind causes damages and losses around the world. The windborne debris carried by strong wind might impact on building and create openings on the building envelop, which might threaten the occupants and cause further damages to the building. To address this issue, some wind loading codes including the Australian Wind Loading Code (AS/NZS 1170:2:2011) give design requirements. The resistance capacity of Oriented Strand Board skins structural insulated panel was investigated and proved having low resistance to the projectile impact, and could not meet the impact resistance requirement for application in cyclonic region C and D defined in Australian Wind Loading Code. In this study, basalt fibre cloth is used to strengthen Oriented Strand Board structural insulated panel to increase its capacity to resist windborne debris impact. This paper presents experimental and numerical study of structural insulated panel with or without basalt fibre cloth strengthening under windborne debris impact. Five specime...

  • performance of structural insulated panels with rigid skins subjected to windborne debris impacts experimental investigations
    Construction and Building Materials, 2015
    Co-Authors: Wensu Chen, Hong Hao
    Abstract:

    Abstract Structural insulated panels (SIPs) are high-performance building materials used as building envelope for residential, industrial and light commercial construction. When the building envelope is impacted by windborne debris in cyclonic area, the debris might perforate the panel resulting in dominant openings. Dominant openings in the building envelope might cause differential internal pressurization and result in the damage to the whole building structure. In the present study, the dynamic response of SIPs with Extended Polystyrene (i.e., EPS) foam core sandwiched by two rigid skins of Oriented Strand Board (i.e., OSB) or fiber cement Board were experimentally investigated by using a pneumatic cannon system for windborne debris impact. The failure and damage modes under various projectile impact scenarios were observed and compared. The performances of the SIPs were examined quantitatively in terms of the projectile penetration length, and deformation and strain time histories of the back skin. The effects of various specimen configurations, impact locations, projectile impact velocities and boundary conditions on their performance were studied. The penetration resistance capacity of the SIPs against windborne debris impact was analyzed.