The Effect of Wood Species and the Number of Layer for Laminated Veener Properties

Iskandar, Mochamad Isa; Supriadi, Achmad

doi:10.18343/jipi.22.1.34

Cited by 3 publications

(4 citation statements)

References 4 publications

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“…In figure 13 it can also be seen that the treatment of the number of layers shows a significant influence on the collapsing force (MOR). This was at the time of testing of broken power (MOR) there was an increase in the number of layers in line with the research of Iskandar and Supriyadi [5] and Widiati [9].…”

Section: Figure 13 Morsupporting

confidence: 70%

Influence of Lamina Wood on the Physical Properties, the Nature of Mechanics, the Strong Class on the Combination of Sengon Wood and Merbau Wood

Suryono¹,

Pranoto²

2021

Proceedings of the 2nd Borobudur International Symposium on Science and Technology (BIS-STE 2020)

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Wood is a material used by man to meet his life needs, both as building materials and other tools. Conditions as a construction component require large size, one that can be by making lamina wood. This study is the influence of lamina on physical properties, mechanical properties, healthy classes using MUF adhesives, which can provide knowledge, so it is utilized as an alternative to solid wood. Deutsches Institut for Normung Standard (DIN) 52186. The value of lamina wood content is between 21.19% to 12.43%, density value between 0.58 g/cm3 to 0.73 g/cm3, lamina wood shear strength between 3.1 N/cm2 to 6.4 N/cm2, MOE between 6192 N/cm2 to 13275 N/cm2, MOR between 51 N/cm2 to 85 N/cm2. Diversity analysis shows that the combination of wood type factor (A) and layer count factor (B) significantly affects MOE diversity analysis of 100.93 very significant and 16.77 very significant. For (MOR) significant influences of 5.66 significant and 7.07 significant. In contrast, adhesive and shear strength significantly affect diversity analysis of 11.71 very significant and 9.03 very significant. Merbau wood as face/back and Sengon wood as core (layer 3 and 5) can be classified as strong grade II-III. For Modulus Of Rupture (MOR) on the treatment of Sengon wood as face/back and Merbau wood as core (3 and 5) as well as Merbau wood as face/end and Sengon wood as meat (3 and 5) can be classified into strong grades II-III.

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Section: Figure 13 Morsupporting

confidence: 70%

Influence of Lamina Wood on the Physical Properties, the Nature of Mechanics, the Strong Class on the Combination of Sengon Wood and Merbau Wood

Suryono¹,

Pranoto²

2021

Proceedings of the 2nd Borobudur International Symposium on Science and Technology (BIS-STE 2020)

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“…Kecenderungan naiknya kerapatan setelah menjadi kayu lapis juga ditunjukkan oleh hasil penelitian terdahulu, yaitu kerapatan kayu lapis tusam lebih tinggi (0,600,76 g/cm 3 ) dibandingkan dengan kerapatan kayunya (0,55 g/cm 3 ) (Santoso et al 1998). Demikian juga hasil penelitian serupa ditemukan pada penelitian pengaruh jenis kayu dan jumlah lapisan pada venir lamina (Iskandar & Supriadi 2017) yang menyatakan bahwa nilai kerapatan venir lamina kayu pinus (0,62 g/cm 3 ) dan venir lamina kayu sengon (0,45 g/cm 3 ) lebih tinggi dibandingkan dengan kerapatan kayu pinus (0,57 g/cm 3 ) dan kayu sengon (0,34 g/cm 3 ). Hal ini disebabkan oleh adanya lapisan perekat dan terjadinya pemadatan pada saat pengempaan venir pada saat pembuatan kayu lapis dan venir lamina.…”

Section: Kerapatanunclassified

“…Kayu lapis yang memiliki ratarata MOE tertinggi adalah kayu lapis pasak linggo, kemudian berturut-turut diikuti oleh kayu lapis punak, mempisang, meranti bunga, dan suntai. Pada Standar Nasional Indonesia untuk kayu lapis, penggunaan umum (SNI 2000) MOE kelima jenis kayu lapis berada di bawah rata-rata MOE venir lamina yang terbuat dari kayu sengon (126.867 kg/cm 2 ) dan kayu pinus (121.657 kg/cm 2 ) maupun campuran kedua jenis kayu tersebut, yaitu 123.800 kg/cm 2 dengan jumlah lapisan yang terdiri atas 4, 6, dan 8 lapis, dengan menggunakan perekat urea formaldehida (Iskandar & Supriadi 2017), sedangkan pada penelitian ini terdiri atas 5 lapis. Jenis perekat yang digunakan dalam penelitian ini sama dengan yang digunakan dalam penelitian venir lamina kayu sengon dan pinus.…”

Section: Modulus Elastisitas (Moe)unclassified

“…MOR kayu lapis dari kelima jenis kayu asal Riau berada di atas rata-rata MOR venir lamina yang terbuat dari kayu sengon, yaitu 381,92 kg/cm 2 dan kayu pinus, yaitu 511,76 kg/cm 2 (Iskandar & Supriadi 2017). MOR kayu lapis yang tinggi ini diduga karena kayu lapis ini memiliki kerapatan yang lebih tinggi (0,65 g/cm 3 ) dibanding kerapatan venir lamina kayu sengon (0,42 g/cm 2 ) dan kayu pinus (0,62 g/cm 2 ).…”

Section: Modulus Patah (Mor)unclassified

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Sifat Kayu Lapis yang Dibuat dari Lima Jenis Kayu Asal Riau

Supriadi

Trisatya

Sulastiningsih

2020

J. Ilmu. Pertan. Indones.

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The objective of this study was to determine the physical and mechanical properties of plywood made of punak (Tetramerista glabra Miq.), meranti bunga (Shorea teysmanniana Dyer ex Brandis), mempisang (Alphonsea spp.), suntai (Palaqium burckii H.J.L.), and pasak linggo (Aglaia argentea Blume). Liquid urea formaldehyde (UF) was used as an adhesive. Data analysis was carried out using a completely randomized design. Results showed that the moisture content and density of plywood produced in this study were around 10.4-10.95% and 0.65 to 0.93 g/cm3, respectively. The modulus of elasticity (MOE) and modulus of rupture (MOR) of plywood produced were between 63.371-123.548 kg/cm2 and 517-1.052 kg/cm2, respectively. It was also found that the tensile strength and bonding strength of the plywood produced were 461.6-1.095 kg/cm2 and 18.97-31.79 kg/cm2, respectively. It was recorded that moisture content and the bonding strength of the plywood produced met the Indonesian National Standard of Plywood. Among others, plywood produced from pasak linggo showed a superior quality. Referring to statistical analysis, it was confirmed that physical and mechanical properties of plywood were significantly affected by wood species, except moisture content. Keywords: mechanical properties, physical properties, plywood, Riau wood species

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Analysis of Wood’s Capacitance Characteristic to its Hardness

Esofita

Djamal

Taruno

et al. 2015

AMM

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A capacitance sensor has been designed to investigate the correlation between wood capacitance value, Janka hardness rating and density. The sensor was developed based on parallel plates using copper as the electrodes. Capacitance values were measured using CV-circuit, 20 Vp-p, 2.5 MHz. Five wood specimens from forest plantation that is Karet (Hevea brasiliensis), Pulai (Alstonia sp.), Pinus (Pinus mercusii), Sengon (Paraserianthes falcataria), and fast growing teak (Tectona grandis) were tested. Each specimen was measured in tangential and radial directions under 0% moisture content conditions. The designed sensor was capable to distinguish the capacitance values in tangential and radial directions. The measurement results showed that wood capacitance value has a good relation with wood’s hardness and density.

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The Effect of Wood Species and the Number of Layer for Laminated Veener Properties

Cited by 3 publications

References 4 publications

Influence of Lamina Wood on the Physical Properties, the Nature of Mechanics, the Strong Class on the Combination of Sengon Wood and Merbau Wood

Influence of Lamina Wood on the Physical Properties, the Nature of Mechanics, the Strong Class on the Combination of Sengon Wood and Merbau Wood

Sifat Kayu Lapis yang Dibuat dari Lima Jenis Kayu Asal Riau

Analysis of Wood’s Capacitance Characteristic to its Hardness

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