Physical and mechanical properties of juvenile wood from Neolamarckia cadamba planted in west Malaysia

Mahmud, Siti Zalifah; Hashim, Rokiah; Saleh, Abdul Hamid; Sulaiman, Othman; Saharudin, Nur Izzaati; Ngah, Mohamad Lokmal; Masseat, Khairul; Hamdan, Halimaton

doi:10.4067/s0718-221x2017005000020

Cited by 7 publications

(7 citation statements)

References 10 publications

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“…The average, lowest, and highest density value of 12 jabon provenances aged 42 months (Figure 3) was 0.94 gcm -3 , 0.92 gcm -3 (Pomalaa provenance), and 0.95 gcm -3 (Rimbo Panti, Nusakambangan, Kapuas Tengah, and Batu Hijau provenances). This result differs from Nugroho et al (2011) and Mahmud et al (2017), who tested 7-year-old jabon to obtain 0.57 gcm -3 and 0.63 gcm -3 . Furthermore, the density of wood is the best predictor of its strength.…”

Section: Physical Properties Of Woodcontrasting

confidence: 94%

“…The average moisture content value was 105.13%, with the lowest and highest at 96.62% (Batu Hijau provenance) and 115.71% (Kuala Kencana provenance). In contrast to the research by Widiyanto and Siarudin (2016), jabon aged 7 years was 120.88%, while the research by Nugroho et al (2011) and Mahmud et al (2017) was lower at 66.92% and 80.01%. The different moisture content values are related to the condition of the pores, which causes the free water content to be high.…”

Section: Physical Properties Of Woodcontrasting

confidence: 65%

“…ANOVA results on MOE, MOR, and MFA showed significant differences (Table 2). The research results of Mahmud et al (2017) also showed significant differences in the MOE test for 7-year-old jabon wood. The MOE values in 1, 2, 3, and 12 provenances were almost identical but different from 4, 5, 6, 7, 8, 9, 10, and 11 provenances.…”

Section: Resultsmentioning

confidence: 81%

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Physical, mechanical, and anatomical properties of 12 jabon (Neolamarckia cadamba) provenances wood in Indonesia

ANNA,

SIREGAR,

SUPRIYANTO

et al. 2023

Biodiversitas

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Abstract. Anna N, Siregar IZ, Supriyanto, Sudrajat DJ, Karlinasari L. 2023. Physical, mechanical, and anatomical properties of 12 jabon (Neolamarckia cadamba) provenances wood in Indonesia. Biodiversitas 24: 5895-5904. Jabon is a raw wood material for paper industries and has a fast-growing ability. Comprehensive information on the fundamental qualities of wood from the 12 provenances of jabon (Neolamarckia cadamba (Roxb.) Bosser) is a critical aspect of understanding their superior properties. The age of the samples at the trial was 42 months old, and the number of trees tested was 12, representing one provenance. Wood samples for physical (disk samples), mechanical, and anatomical properties were sampled at a height and length of 1.3 m and 35 cm. The logs were divided into 5 cm and 30 cm for wood samples with anatomical and mechanical properties. The physical and mechanical properties were tested according to ASTM D 4442, ASTM D 2395, and ASTM D 143 standards. The physical (density, specific gravity, and moisture content), mechanical properties (MOE and MOR), and anatomical properties (fiber length and microfibril angle) were carried out on wood from 12 provenances. Physical and anatomical properties were tested, from the pith to the outer bark. The average green wood density was 0.94 gcm-3, while the highest was obtained in the Rimbo Panti, Nusakambangan, Kapuas Tengah, and Batu Hijau provenances. The average specific gravity value from the 12 provenances of jabon was 0.46 in Batu Licin and Batu Hijau provenances; the average moisture content on oven-dry weight was 105.13%; and the highest value was in the Kuala Kencana provenance. The average MOE and MOR values were 51,039.93 kgcm-² and 488.37 kgcm-², with a dry air moisture content of 13.62%. The highest MOE and MOR values were in the Batu Licin and Gowa provenance, with MFA testing varied at 11.54°. The fiber length from the pith to the outer bark tended to increase, with an average of 1183.28 ?m. Based on the value of physical, mechanical, and anatomical properties, 12 provenances of jabon can only be used as non-structural raw materials. The Batu Hijau provenances have the highest density and specific gravity. However, the highest fiber length was found in Gowa provenance.

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Section: Physical Properties Of Woodcontrasting

confidence: 94%

Section: Physical Properties Of Woodcontrasting

confidence: 65%

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Physical, mechanical, and anatomical properties of 12 jabon (Neolamarckia cadamba) provenances wood in Indonesia

ANNA,

SIREGAR,

SUPRIYANTO

et al. 2023

Biodiversitas

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“…Analyses of variance showed that there was a significant difference (P<0,05) among the stem heights, and air dry density decreased with increasing stem height for both wood species. Similar results were reported for Pinus sylvestris, Betula pendula and Betula pubescens by Repola (2006), for Tectona grandis Izekor et al (2010), for Corylus colurna by Zeidler (2012), for Abies alba by Rodrigo et al (2013), for Pinus taeda by Yu et al (2014), for Albizza julibrissin by Kiaei and Farsi (2016), and for Neolamarckia cadamba by Mahmud et al (2017). In contrast, Molteberg and Høibø (2006) reported an increase of basic density with vertical position in the norway spruce trees.…”

Section: Wood Density Shrinkage and Swelling Valuessupporting

confidence: 69%

Longitudinal variation in selected wood properties of oriental beech and caucasian fir

Topaloğlu

Erişir

2018

Maderas, Cienc. tecnol.

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In this study, several wood properties were investigated along with the longitudinal direction for oriental beech and caucasian fir trees grown in Turkey. Wood density, compression strength parallel to grain, chemical characteristics (holocelluose, celluose, lignin), fiber dimensions (fiber length, fiber width, fiber lumen width, fiber cell wall thickness) were measured from the sapwood of the discs taken at the stem heights of 1,30; 6,30 and 12,30 meters. Both wood species showed clear trends in wood properties along longitudinal direction. For both wood species, the highest values in density, compression strength, volumetric shrinkage and swelling were at 1,30 m stem height, and the investigated parameters decreased along with the stem height, while longitudinal shrinkage and swelling percentage increased. The highest cellulose content was found at 1,30 m stem height, and the highest lignin content was found at 12,30 m stem height for both wood species. The longest fibers and the thickest fiber walls were determined at 1,30 m stem height in both wood species. These results clearly indicated that stem height greatly affected the investigated wood properties for both wood species.

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“…For the use of wood as a structural member, its physical and mechanical properties should be determined according to standardized laboratory procedures (Kloiber et al 2015;Mahmud et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Time of exposure at 60 °C service temperature: Influence on strength and modulus of elasticity in compression parallel to the grain of hardwood species

Almeida

Arroyo

et al. 2018

BioRes

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The aim of this research was to determine the influence of exposure time at 60 °C in the compression strength parallel to the grain (fc0) and modulus of elasticity in compression parallel to the grain (Ec0) for cupiúba (Goupia glabra), eucalypt (Eucalyptus saligna), garapeira (Apuleia leiocarpa) and jatobá tamarindo (Hymeneae sp.) wood species. The factor investigated in this research was the residence time in kiln (exposure at controlled temperature 60 °C) of specimens: 0 (wood tested at room temperature and moisture content around to 12%), 168, 456, 720, and 2160 hours, simulating the reaction of the material in confined roof structures. Compression parallel to the grain tests were conducted according to the methods of the Brazilian Standard Code ABNT NBR 7190 (1997). ANOVA results indicated that the temperature (60 °C) had a significant influence in the five exposure times. All studied wood species showed an increase in the fc0 value with increasing time of exposure at 60 °C. For Ec0, this phenomenon occurred only for the jatobá tamarindo and cupiúba wood species.

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Physical and mechanical properties of juvenile wood from Neolamarckia cadamba planted in west Malaysia

Cited by 7 publications

References 10 publications

Physical, mechanical, and anatomical properties of 12 jabon (Neolamarckia cadamba) provenances wood in Indonesia

Physical, mechanical, and anatomical properties of 12 jabon (Neolamarckia cadamba) provenances wood in Indonesia

Longitudinal variation in selected wood properties of oriental beech and caucasian fir

Time of exposure at 60 °C service temperature: Influence on strength and modulus of elasticity in compression parallel to the grain of hardwood species

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