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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Ilmu dan Teknologi Hasil Hutan Peronema Forestry Science Journal FORESTA Journal of Sylva Indonesiana Repong Damar: Jurnal Pengabdian Kehutanan dan Lingkungan Biodiversitas Journal of Biological Diversity
Sucipto, Tito
Department Of Forest Product, Faculty Of Forestry, Universitas Sumatera Utara. Kampus 2 USU Kwala Bekala, Deli Serdang 20353, North Sumatra, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science

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Journal : foresta

 1 
Effect of Soaking Treatment to Oil Palm Empty Fruit Bunches Wettability and Its Comparison with Several Woods Wettablility Tito Sucipto; Surdiding Ruhendi
FORESTA Vol 1, No 1 (2012): MARET
Publisher : FORESTA

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Abstract

The wettability in term of corrected water absorption height (CWAH) of treated oil palm empty fruit bunches (TKS) particles and compare with some woods wettablility was investigated. The treatments were soaking TKS in cold water, hot water and ethanol–benzene. The objective of the research was to know the effect of soaking treatment on the wettability as indicator of gluability of the TKS particles adhesion strength and its comparison with several woods wettablility. The research results show that the CWAH of the TKS which were soaked in cold water, hot water and ethanol–benzene were 72 mm, 202 mm and 214 mm, respectively. Meanwhile the CWAH of untreated TKS was only 46 mm, were lower than those the treated ones. The analysis of variance shows that the soaking treatment in ethanol–benzene and hot water significantly and positively affect wettability. Generally, CWAH of the TKS was lower than other woods, which effected by density, porousity and extractive difference.Keywords: oil palm empty fruit bunches, soaking treatment, wettability
Analysis of Adhesion Quality of Mangium Laminated Wood with Polystirene Resin Tito Sucipto; Surdiding Ruhendi
FORESTA Vol 1, No 1 (2012): MARET
Publisher : FORESTA

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Abstract

Adhesion quality effeccted by adhesive and adheren quality, adhesion process, and product purpose condition. Materials in this research used mangium wood (Acacia mangium) and polystirene resin. The objective of the research was to know the adhesion quality of laminated wood and effect of fiber orientation (axial/ A; radial/ R; tangensial/ T), glue spread (120; 170 g/cm2) and glue spread system (single spread/ SS; double spread/ DS) to adhesion quality of laminated wood. The research results show that the highest of glue line shear strength are 5.01 N/mm2 (R–SS–170) for dry test, and 4.68 N/mm2 (T–SS–170) for wet test. Meanwhile the lowest of glue line shear strength are 1.47 N/mm2 (A–SS–120) for dry test, and 1.47 N/mm2 (T–SS–120) for wet test. Only two wet test laminated wood (T–SS–170 and T–SS–120) fulfill Indonesian standard/ SNI 06–6049–1999 (glue line shear strength ≥3 N/mm2).Keywords: glue line shear strength, mangium, glued laminated wood, polystirene resin
Pengaruh Rasio Semen/Serat Dan Jenis Katalis Terhadap Kekuatan Fiber-Cement Board Dari Limbah Kertas Kardus (The Influence of Cement-to-Fiber Ratio and Type of Catalyst on Strength Properties of Fiber-Cement Board Made from Old Corrugated Paper) Luthfi Hakim; Tito Sucipto
FORESTA Vol 1, No 2 (2012): Indonesian Journal Of Forestry Volume 1 No. 2 (Juli 2012)
Publisher : FORESTA

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Abstract

Fiber cement board (FCB) made from old corrugated paper has not to develop. The main objective of this study was to evaluate the suitability of old corrugated paper as reinforcement for cement-bonded board and the study was undertaken to: 1) determine the optimum cement-to-fiber ratio, the best type of catalyst; 2) determine the strength properties of cement-bonded boards manufactured from the old corrugated paper; 3) determine the effect of cement-to-fiber ratio on strength properties of cement-bonded boards from old corrugated paper. The treatments of cement/fiber ratio were 60:40 ; 50:50 and 40:60. The catalyst were aluminum sulfate (Al2(SO4)3), sodium silicate (Na2SiO3), and calcium chloride (CaCl2) as an accelerator. Old Corrugated paper was soaked into cold water for 48 hours and continued re-pulped with disintegrator at 2 % consistency for 15 minutes until the fiber separated. The boards were pressed by cold press at 25 kg/cm2 for 15 minutes with density target at 1 g/cm3. Methods of this research were two steps curing. The first step was air curing for 48 hours and continued of second step was oven curing at 80o C for 48 hours. The result of the research showed that the density of boards was average 1.03 g/cm3. The effect of cement-to-fiber ratio on the strength properties showed that 60:40 is better rather than 50:50 and 40:60. The best Catalyst is calcium chloride (CaCl2).Keywords: catalyst, fiber-cement board, old corrugated paper, strength properties.
Co-Authors Afri Soni Wanson Samosir Agus Purwoko Ahmad Baiquni Rangkut Ahmad Baiquni Rangkuti Ahmad Roihan Anita Zaitunah APRI HERI ISWANTO Apri Heri Iswanto ARIDA SUSILOWATI Arida Susilowati Iswanto ATMAWI DARWIS Bhima mahawira Chamvion IR Cut Yulia Maghfirah Deni Elfiati Deni Elfiati Desi Natarina Sembiring DWIVIA WAHYU AMANDA Erwinsyah Evalina Herawati Fatmala Salmah Fauzi Febrianto Fradika Oktavianus Bernadi Siahaan Fradika Oktavianus Bernadi Siahaan Frederick Raymond Guido Simbolon Hafizah Arinah Hafizah Arinah Harisyah Manurung Heber Fransiskus Irawati Azhar Irawati AZHAR Irawaty Irawaty Ivan Mikael JAJANG SUTIAWAN Jajang Sutiawan Jajang Sutiawan Jajang Sutiawan Johanna Christina Malau Jonyal Periandi Sitanggang Kaya Muda Lubis Listi Erawaty Simbolon Lusi H Manalu Lutfhi Hakim Luthfi Hakim Luthfi Hakim Luthfi Hakim Luthfi Hakim Luthfi Hakim Luthfi Hakim Luthfi Hakim Luthfi Hakim Luthfi Hakim M. ADLY RAHANDI LUBIS Marcelila Medynda Mariah Ulfa Mariah Ulfa Merry Cristin Natalia Simaremare Moehar Maraghiy Harahap NAM HUN KIM NIKEN SUBEKTI Nova Tampubolon Obbi Pardamean Pane OK Hasnanda Syahputra OK Hasnanda Syahputra Pardamean Tampubolon Purwoko, Agus Putri Rafika Wulandari Rasi Odesto Tarigan Rini Armaya Rizqi Putri Winanti RUDI HARTONO Rudi Hartono Rudi Hartono Rudi Hartono Rudi Hartono Rudi Hartono Rudi Hartono Rudi Hartono Rudy Hartono Sipahutar Rumondang Bulan Batubara SAHARMAN GEA Samsuri Samsuri Samsuri, Samsuri Shanty Sianturi Surdiding Ruhendi Surdiding Ruhendi Suri Fadhilla Syafrina Talenta Lumbangaol SYAHIDAH SYAHIDAH Syahroni Hasan Siregar WAHYU HIDAYAT WIDYA FATRIASARI Winda Martogi Situmeang Yunida Syafriani L Zahrial COTO Zainal Abidin Syah Polem