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Fauzi Febrianto
Forest Product Dept., Forestry Faculty, IPB University, Darmaga Campus, Bogor, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Analisis Modulus Geser dan Pengaruhnya terhadap Kekakuan Panel Laminasi Kayu Samama (Antocephallus Macrophyllus) Cahyono, Tekat Dwi; Wahyudi, Imam; Priadi, Trisna; Febrianto, Fauzi; Ohorella, Syarif
Jurnal Teknik Sipil Vol 21, No 2 (2014)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (229.381 KB)

Abstract

Abstrak. Modulus geser perlu dijadikan pertimbangan pada produkkayu, khususnya untuk desain yang memiliki rasio tinggi/panjang bentangnya besar.Penelitian ini mendesain 6 tipe panel laminasi kayu Samama (Antocephallus macrophyllus), menganalisis modulus geser dan pengaruhnya terhadap nilai kekakuan (MOEstatis) masing-masing panel laminasi. Hasilnya kemudian dibandingan dengan kekakuan hasil pengujian non destruktif (MOEd). Hasil penelitian menunjukkan bahwa modulus geser panel laminasi kayu Samama memberikan pengaruh sebesar 2 - 8% terhadap kekakuan kayu Samama, tergantung pada tipe laminasi dan panjang bentangnya. Sementara itu nilai pengujian non-destruktif memiliki nilai yang lebih besar 11 - 20% dibandingan dengan kekakuan panel laminasi kayu Samamayang telah terkoreksi oleh modulus geser. Abstract. Shear modulus need to be considered in designing wood product that has high ratio of height/length. This study designed 6 types of panel lamina made of Samama wood (Antocephallus macrophyllus). The shear modulus was measured and its effect on the stiffness (MOE static) was analyzed in comparison to those of non-destructive test (MOEd). The results showed that shear modulus affected the stiffness of the laminas by 2-8%;the value was determined by the type of lamination and the length of span. Meanwhile, non-destructive test showedthat the laminas had 11-20% of higher stiffness than those of laminas with shear modulus corrected-stiffness.
Sudut Kontak dan Keterbasahan Dinamis Kayu Samama pada Berbagai Pengerjaan Kayu Cahyono, Tekat Dwi; Wahyudi, Imam; Priadi, Trisna; Febrianto, Fauzi; Ohorella, Syarif
Jurnal Teknik Sipil Vol 24, No 3 (2017)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1741.771 KB) | DOI: 10.5614/jts.2017.24.3.3

Abstract

AbstrakSudut kontak dan keterbasahan dinamis penting diketahui untuk menganalisis keteguhan rekat. Penelitian ini bertujuan mengetahui sudut kontak dan keterbasahan dinamis kayu samama pada berbagai pengerjaan kayu. Metode yang digunakan adalah meneteskan air destilata, perekat UF dan isosianat dengan ukuran tertentu pada permukaan kayu hasil gergaji dan hasil mesin kupas. Permukaan kayu gergajian yang ditetesi oleh cairan adalah permukaan radial, tangensial dan permukaan yang membentuk sudut 45° antara radial dan tangensial. Sementara itu permukaan finir hasil pengupasan adalah permukaan tight dan loose. Kayu gergajian maupun finir yang dianalisis pada penelitian ini, keduanya diambil dari bagian juvenil dan dewasa. Keterbasahan dinamis dianalisis menggunakan model SD. Hasil penelitian menunjukkan bahwa porositas permukaan bahan berpengaruh terhadap keterbasahan kayu samama oleh cairan. Permukaan tangensial memiliki sifat yang lebih mudah mengalami keterbasahan dibandingkan dengan permukaan radial maupun TR (permukaan antara radial dan tangensial) sementara bagian juvenil memiliki tingkat keterbasahan lebih baik dibandingkan dewasanya. Finir samama memiliki tingkat keterbasahan setara dengan permukaan TR kayu samama dimana bagian juvenil finir memiliki laju keterbasahan yang lebih baik dibandingkan dengan finir dewasa. Disamping itu, bagian loose finir lebih cepat terbasahi oleh cairan dibandingkan bagian tight.AbstractContact angle and dynamic wettability is important in determining bonding strength, therefore, this study addressed contact angle and dynamic wettability of samama wood in various woodworking. Method used in the study was by dripping distill water, UF and isocyanate adhesives in particular size on the surface of wood processed by circular saw and peeling machine. The surfaces of sawn wood which dripped by those liquids were radial, tangential, and surface which made a 45° angle between radial and tangential. Meanwhile the tested surfaces of peeled-veneer were tight and loose surfaces. Both sawn wood and veneer in this study were taken from juvenile and mature part of the samama wood. Dynamic wettability was analyzed using SD model. The results showed that porosity of the surface significantly affected the wettability of samama wood by liquid. The profile of tangential surface made it had a better wettability than radial and TR (i.e. surface between radial and tangential) surfaces. Meanwhile, juvenile part showed better wettability than the mature one. The samama veneer had equal wettability with TR surface of sawn wood in which the juvenile one showed better wettability than the mature veneer. Further, it was noticed that loose surface of the veneer was wetted faster than the tight one.
Peningkatan Sifat Papan Partikel Sengon dengan Perlakuan Perendaman Air Dingin (Improvement the Propoerties of Particleboard Made from Sengon with Cold Water Immersion Treatment) Marwanto, Marwanto; Maulana, Sena; Maulana, Mohammad I; Wistara, Nyoman J; Nikmatin, Siti; Febrianto, Fauzi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 2 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

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Abstract

The objectives of this research is to evaluate the physical and mechanical properties of particle board made from sengon and mangium woods treated with cold water immersion. Particles of sengon and mangium immersed in cold water for 24 hours. The particles of sengon and mangium are combined with a ratio of 100: 0; 0: 100; 75:25; and 50:50. Particle boards are made in size (30x30x0,9) cm3 with target densities of 0.7 g cm-3. The particle board was binded with methylene diphenyl diisocyanate (MDI) adhesive at 10% content and hot press at 140 °C with 25 kgf cm-2 for 7 minutes. The physical and mechanical properties of particle board are evaluated according to JIS A 5908-2003 standard. The physical and mechanical properties of particle board were much affected by particle combination and cold water immersion treatment. The physical (i.e density, moisture content, water absorption (WA), and thickness swelling (TS)) and mechanical properties (ie. modulus of elasticity (MOE), modulus of rupture (MOR), and internal bonding (IB)) were evaluated. The results showed that cold water immersion improved dimensional stability (WA and TS) of particle board obtained. However, some mechanical properties decreased.Keyword: cold water immersion, mangium, particleboard, sengon
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) Murda, Rio A; Nawawi, Deded S; Maulana, Sena; Maulana, Muhammad I; Park, Se-Hwi; Febrianto, Fauzi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 2 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

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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.Keywords: bamboo, chemical components, steam modification, strand,
THE QUALITY OF COMPOSITE BOARD MADE OF WASTE OIL PALM STEM (Elaeis guineensis Jacq) AND RECYCLE POLYETHYLENE (PE) Maryam Jamilah Lubis; Iwan Risnasari; Arif Nuryawan; Fauzi Febrianto
Jurnal Teknologi dan Industri Pangan Vol. 12 No. 1 (2001): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

The main objective of this research was to find out the substitution of solid wood and it may solve environmental problem. These researches concerned on using waste of oil palm stem particle form and recycle plastic polyetyhlene (PE) as raw materials for composite board. In this research, 5% Maleic Anhydride (MAH) was added to increase compatibility and 0.75% Dicumyl Peroxide (DCP) was added to initiate the reaction of maleolation. The methods of this research followed JIS A 5908 (2003) with ratio of plastic to particle were 50:50, 60:40 and 70:30, respectively, pressed at 30 kgf/cm2 in 165°C for 15 minutes. Evaluation on physical and mechanical properties based on JIS A 5908 (2003), and the result of physical properties as follow : 1) Density met the standard at 0.77 - 0.99 g/cm, 2) The value of moisture content were below on target and the standard because of the hidrofobicity of PE, the range were 0.79 - 3.06%, 3) Thickness swelling of the board for 24 hours fulfill the standard the value were 0.44 - 2.77%. Unfortunatelly the water absorption were 2.82 - 16.19%. Mechanical properties consist of modulus elasticity (MOE), modulus rupture (MOR) and screw holding strength didn’t meet the criteria of JIS A 5908 (2003), except MOR with plastic: particle 60:40 with particle made of inner stem. Keywords: Composite board, oil palm stem, polyethylene (PE)
The Quality Of Composite Board Made Of Waste Oil Palm Stem (Elaeis Guineensis Jacq) And Recycle Polyethylene (Pe) Maryam Jamilah Lubis; Iwan Risnasari; Arif Nuryawan; Fauzi Febrianto
Jurnal Teknologi Industri Pertanian Vol. 19 No. 1 (2009): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The main objective of this research was to find out the substitution of solid wood and it may solve environmental problem. These researches concerned on using waste of oil palm stem particle form and recycle plastic polyetyhlene (PE) as raw materials for composite board. In this research, 5% Maleic Anhydride (MAH) was added to increase compatibility and 0.75% Dicumyl Peroxide (DCP) was added to initiate the reaction of maleolation. The methods of this research followed JIS A 5908 (2003) with ratio of plastic to particle were 50:50, 60:40 and 70:30, respectively, pressed at 30 kgf/cm2 in 165°C for 15 minutes. Evaluation on physical and mechanical properties based on JIS A 5908 (2003), and the result of physical properties as follow : 1) Density met the standard at 0.77 - 0.99 g/cm, 2) The value of moisture content were below on target and the standard because of the hidrofobicity of PE, the range were 0.79 - 3.06%, 3) Thickness swelling of the board for 24 hours fulfill the standard the value were 0.44 - 2.77%. Unfortunatelly the water absorption were 2.82 - 16.19%. Mechanical properties consist of modulus elasticity (MOE), modulus rupture (MOR) and screw holding strength didn’t meet the criteria of JIS A 5908 (2003), except MOR with plastic: particle 60:40 with particle made of inner stem. Keywords: Composite board, oil palm stem, polyethylene (PE)
Measurement of Microfibril Angle Using X-Ray Diffraction and Light Microscope on 5-year-old Super and Conventional Teak Wood Setiowati Setiowati; Ratih Damayanti; I. Ketut N. Pandit; Fauzi Febrianto; Gustan Pari
Wood Research Journal Vol 5, No 1 (2014): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2014.5.1.10-17

Abstract

The long   harvest time  causes the   processing  industry  manufactured  from   teak  wood (Tectona  grandis L.  f.)  has experienced  a lot of declines. To overcome this  problem,  currently,  in Indonesia  many types  of fast-growing  teak  have been developed, one of which is Jati Unggul Nusantara (JUN). Trees that  are accelerated in growth, are likely to cause changes in their  anatomical  structure. The anatomical  structure of wood is one of the  basic  properties  that  greatly influences  the  use of wood as a raw  material. Even small changes in cell shape and size can change the  properties of wood as a raw  material. One of the  anatomical  structures of wood, namely the  ultramicroscopic  structure that  affects the  quality  of wood, is the  microfibril angle (MFA). The purpose of this  study is to determine  the  MFA of JUN at the  planned cutting  age of 5 years, compared to conventional teak at  the  same age. There are two  methods used, namely using X-Ray Diffraction (XRD) and measuring the elongation  of  the  pit  apertures slope of  the  fiber  cells using  a light  microscope,  which was obtained from  the  maceration process. As  a result, JUN's MFA is 22.09°, smaller than  the  conventional teak of 25.29°. This is because JUN was developed from  top  cuttings  so  although  still  young, it  already  reflects  the   characteristics  of  mature teak. The results of  the  MFA measurements on  JUN using two  methods (XRD and light microscope), resulted different values. It is different from  the  MFA measurement results on  conventional teak. It is recommended to  measure the MFA in JUN wood by  using XRD, because possibly, due to accelerated  growth, simple pits with an  oval shape turn  into circular. This difference causes the  results of the JUN MFA measurement using a light microscope based on the  pit apertures slope to be  inconsistent, subjective, and different results  in  other  pits   contained  in  the   fiber   even  though they  are  closely  associated. However,  in  conventional  teak, measurements using a light microscope are possible because the  shape of the  pit is oval so  that  the  slope of the  elongation of the  pit aperture can be  determined easily, and is more consistent with more uniform values in the  same individual fiber
Wood Properties of 5-year-old Fast Grown Teak Ratih Damayanti; Barbara Ozarska; I Ketut N. Pandit; Fauzi Febrianto; Gustan Pari
Wood Research Journal Vol 9, No 2 (2018): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2018.9.2.29-34

Abstract

Jati Unggul Nusantara (JUN) is one of fast growing plantation teak that has been widely cultivated in Indonesia. This teak has been developed to be harvested after 5 years when its diameter reaches 25-32 cm (diameter at breast high). The diameter of JUN is usually three times larger than the conventional plantation teak (teak cultivated from seed) at the same age, and the same as 30-40 year-old mature teak. Preliminary research was conducted to determine anatomical and selected physical properties of 5-year-old JUN teak, as well as its suitability for furniture production. The results revealed that wood color, texture, and grain pattern of JUN were slightly different from the mature conventional teak. The length of fiber cells was similar as in the mature teak. There were differences in ultramicroscopic structure of JUN: the mean micro fibril angle was narrower, and the crystallites degree was larger. Shrinkage values from green to 12% moisture content were:  0.70 (radial-R) and 1.62 (tangential-T), and from green to oven dry were 1.59 (R) and 3.29 (T). T/R ratio was 2.34. Specific gravity in air dry condition was 0.52. Based on the research results it appears that 5-year-old JUN may be suitable for the production of medium quality furniture products. More research is required to investigate and enhance the properties of JUN for high quality products.
The objective of this research was to analyze the physical and mechanical properties of palm oil trunk.  The result showed that in term of the vertical direction the lower part of stem had better physical (density, moisture content and shrinkage) and mechanical (modulus of elasticity, modulus of rupture, hardness, compressive and tensile strength parallel to grain) properties compared with medium and upper end part.  In the horizontal direction the edge part of trunk had better physical and mech Apri Heri ISWANTO; Tito SUCIPTO; Irawati AZHAR; Zahrial COTO; Fauzi FEBRIANTO
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 3 No. 1 (2010): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

The objective of this research was to analyze the physical and mechanical properties of palm oil trunk.  The result showed that in term of the vertical direction the lower part of stem had better physical (density, moisture content and shrinkage) and mechanical (modulus of elasticity, modulus of rupture, hardness, compressive and tensile strength parallel to grain) properties compared with medium and upper end part.  In the horizontal direction the edge part of trunk had better physical and mechanical properties than medium and center part.   Keywords :              horizontal direction, palm oil stem, physical pro-perties, mechanical properties, vertical direction
Wood has specific base properties of thermal and combustion. Since being grew normally at marginal soil of mining area, sengon buto, waru and gmelina woods were objectified to investigate thermophisic aspect of their usage as substitution fuel in cement production. Examination based on species, ages and horizontal positions of those woods showed that mean of heating value in oven dry and air dry condition was 4.505 kkal/kg and 4.084 kkal/kg, respectively. Determination of wood substitution to or Tekat DWI CAHYONO; Zahrial COTO; Fauzi FEBRIANTO
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 1 No. 1 (2008): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

Wood has specific base properties of thermal and combustion. Since being grew normally at marginal soil of mining area, sengon buto, waru and gmelina woods were objectified to investigate thermophisic aspect of their usage as substitution fuel in cement production. Examination based on species, ages and horizontal positions of those woods showed that mean of heating value in oven dry and air dry condition was 4.505 kkal/kg and 4.084 kkal/kg, respectively. Determination of wood substitution to ordinary fuel was acquired by accumulating heating value with prediction value of plantation biomass potency; and enquiry for 850 ha mining area resulted that waru wood will contribute about 5,14% to coal total requisite per year, gmelina and sengon buto will contribute about 5,03% and 4,49%, respectively.   Keywords:  Wood, heating value, substitution fuel
Co-Authors A.A. Ketut Agung Cahyawan W Abi K Arif Adesna Fatrawana Adesna Fatrawana Adiyantara Gumilang Adrin Adrin Aginsa T. Putri Agustina Purwaningsih Ahmad Zailani Andi D Yunianti Andi Z Pranata Anne Carolina Apri H Iswanto Apri Heri Iswanto Apri Iswanto Apri Iswanto, Apri Arif Nuryawan Arinana Arinana Barbara Ozarska Byantara D Purusatama Byantara Darsan Purusatama Ching K Man Christine Wulandari Dede Hermawan Deded Sarip Nawawi Denni Prasetia Doni Hapsoro Dwi R. Endriadilla Edi S. Bakar Elvara D Satria Fengky Satria Yoresta Go Un Yang Gustan Pari Gustan Pari Gustan Pari Gustan Pari Handian Purwawangsa Hanny Hafiar Hikma Yanti I Ketut N. Pandit I Nyoman Jaya Wistara I. Ketut N. Pandit Ihak Sumardi Ihak Sumardi Imam busyra Imam Wahyudi Indrawan, Imam Wahyudi Indra G Febryano Intan F Suri Intan Purnamasari Irawati AZHAR Ismail Budiman Iwan Risnasari Jemi, Renhart Jong Ho Kim Karliati, Tati Marwanto Marwanto Marwanto Marwanto Marwanto Marwanto Marwanto, Marwanto Maryam Jamilah Lubis Maulana, Mohammad I Maulana, Muhammad I Maulana, Sena Min Lee Mohamad Amarullah Mohamad I Sya'bani Mohd. H. Sahri Muhammad Adly Rahandi Lubis Muhammad Adly Rahandi Lubis Muhammad Hanafi Muhammad Iqbal Adi Baskara Muhammad Iqbal Maulana Muhammad QA Damanik Nam H Kim Nam Hun Kim Nam Hun Kim Nam-Hun Kim Nicken O Putri Nurmadina Nurmadina Park, Se-Hwi Purnawati, Renny Rahmat Safe’i Ratih Damayanti Ratih Damayanti Renhart Jemi Rio Ardiansyah Murda Rita K Sari Rita K Sari Rita Kartika Sari Rudi Hartono Rynaldo Davinsy Se-Hwi Park See P Hwee Sehwi Park Setiowati Setiowati Seung Hwan Lee Siti Nikmatin Soleh Muhamad Subyakto Subyakto Sucahyo Sadiyo Sucipto, Tito Sudirman Sudirman Surdiding Ruhendi Surdiding Ruhendi Surdiding RUHENDI Syarif Ohorella Tekat D Cahyono Tekat Dwi Cahyono Tibertius A. Prayitno Trisna PRIADI Wahyu DWIANTO Wahyu Hidayat Wasrin Syafii Widya FATRIASARI Wisnu Satyajaya Wulan Starini Yusuf Hadi Yusuf Hadi, Yusuf Yusuf Sudo Hadi Zahrial COTO Zaidon Ashaari