Propriedades físicas, químicas e mecânicas da madeira de cedro australiano cultivado em Corupá, SC

Trianoski, Rosilani; Matos, Jorge Luís Monteiro de; Iwakiri, Setsuo

doi:10.4336/2014.pfb.34.80.523

Cited by 5 publications

(5 citation statements)

References 5 publications

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“…When comparing with species traditionally used for the production of pencils (cedar, gmeline and poplar), the average results obtained for the basic specific mass in this study are close to the wood of Toona ciliata (Australian cedar) reported by Pereyra et al (2006), Albino et al (2010 and Trianoski et al (2014), which provided values from 0.366 to 0.422 g.cm -3 . For Gmelina arborea, the values obtained in the literature range from 0.432 to 0.603 g.cm -3 as reported by Espinoza ( 2004) and Moya and Tomazello Filho (2009).…”

Section: Basic Specific Mass Of Speciessupporting

confidence: 83%

PHYSICAL PROPERTIES OF WOOD Pinus caribaea var. caribaea, Pinus caribaea var. hondurensis AND Pinus oocarpa FOR PENCIL PRODUCTION

Loiola

Klitze

Rocha

et al. 2021

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The behavior of the physical properties of wood is important for its use in the industrial sector. Manufacturing for pencil production requires raw material with low specific mass and high dimensional stability. The objective of this study was to evaluate the properties of the physical specific basic mass properties, anhydrous and green, as well as the retractability of the 14 years old Pinus caribaea var. caribaea, 25 years old Pinus caribaea var. hondurensis and 35 years old Pinus oocarpa in the medulla sense of the bark, base and top of the trees. All species come from the Brazilian Cerrado region afforestation. As for dimensional stability, the Pinus caribaea var. caribaea and Pinus oocarpa had similar behaviors to the volumetric contraction, when evaluating the coefficient of anisotropy of wood species of Pinus caribaea var. caribaea had higher values of anisotropy coefficient, however, all tropical pine studied, qualify as a raw material for the pencil industry, being an alternative species traditionally used.

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Section: Basic Specific Mass Of Speciessupporting

confidence: 83%

PHYSICAL PROPERTIES OF WOOD Pinus caribaea var. caribaea, Pinus caribaea var. hondurensis AND Pinus oocarpa FOR PENCIL PRODUCTION

Loiola

Klitze

Rocha

et al. 2021

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“…Reboleto et al (2017) reported a similar value (9.38 MPa) to those found for boles with diameters of up to 26 cm. Comparing with two other species, the shear strength of Swietenia macrophylla was lower than that verified for K. ivorensis (12.6 MPa) and K. senegalensis (18.6 MPa) (França et al, 2015), but higher than that described for: Toona ciliata (8,04 MPa) (Trianoski et al, 2014).…”

Section: Shearcontrasting

confidence: 64%

“…Comparing the results obtained with other species, it appears that the wood of Swietenia macrophylla has compression values less than Khaya ivorensis, Khaya senegalensis (França et al, 2015), Hymenaea stilbocarpa (Lahr et al, 2016) and Cedrela odorata (IBAMA, 2018). However, their values were superior to species such as: Eucalyptus benthamii (Benin et al, 2017), Toona ciliata (Trianoski et al, 2014) and Schizolobium amazonicum (Vidaurre et al, 2018).…”

Section: Compression and Flexionmentioning

confidence: 99%

Quality of the wood Swietenia macrophylla from planting in the Central Amazon

Silva¹,

Pio²,

Santos³

et al. 2023

JER

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The aim of this study was to determine the quality of wood from Swietenia macrophylla in commercial plantation aged 20 years in the Central Amazon. The planting has a total of 100 hectares, with initial spacing of 7 m x 6 m. Five trees were selected for sampling by destructive method. The quality of the wood was evaluated considering the physical and mechanical properties. A completely randomized design was used considering a probability level of 95%. The only variable that did not show a significant difference between shafts was MOE compression. For the other variables, the stems with the best performances were those with a diameter between 25 cm and 35 cm. The wood from: Swietenia macrophylla in planting for 20 years, it has a high modulus of rupture, medium modulus of elasticity, medium shear strength, medium hardness and medium resistance to compression parallel to the fibers, indicating the possibility of use for commercial purposes.

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“…Indian cedar showed less dimensional stability when compared to other species such as mahogany, which has an anisotropy coefficient of 1,41 % (Mainieri and Chimelo 1989), Swietenia mahagoni and Cedrela odorata, with contraction anisotropy between 1,2 % and 1,5 %, respectively (Loureiro and Silva 1968). On the other hand, it presented greater dimensional stability when compared to Australian cedar (Toona ciliata), with a volumetric contraction of 10,56 % and an anisotropy coefficient of 2,22 % (Trianoski et al 2014).…”

Section: Table 1: Results Of Dimensional Stability Testsmentioning

confidence: 95%

Physical, chemical and mechanical characterization of Acrocarpus fraxinifolius cultivated in Sao Paulo

Oliveira

Molina³

2021

Maderas, Cienc. tecnol.

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Indian cedar (Acrocarpus fraxinifolius) is a wood species that occurs naturally in India, Myanmar (Burma) and Bangladesh, and has a high commercial value, with characteristics like mahogany and native cedars. The planting of Indian cedar has been undertaken in Brazil, but there is little information available regarding the characterization of the species. Therefore, considering its timber potential and its possibility of development in the country, the present work aimed to evaluate the physical, chemical, and mechanical properties of 9-year-old Indian cedar wood, planted in the southern region of Brazil. A low specific mass (502 kg/m³), low average dimensional stability (anisotropy coefficient of 2,09 %) was observed, in addition to the low content of extractives (1,94 %). From the mechanical characterization, an average value for the elastic modulus of 8963 MPa was obtained, and for the compressive strength parallel to the grain the average and characteristic values were 32,14 MPa and 21,46 MPa, respectively. This indicates that this wood belongs to resistance class C20 (dicotyledons). The results obtained classify the wood for use in light, external, or internal civil construction

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Propriedades físicas, químicas e mecânicas da madeira de cedro australiano cultivado em Corupá, SC

Cited by 5 publications

References 5 publications

PHYSICAL PROPERTIES OF WOOD Pinus caribaea var. caribaea, Pinus caribaea var. hondurensis AND Pinus oocarpa FOR PENCIL PRODUCTION

PHYSICAL PROPERTIES OF WOOD Pinus caribaea var. caribaea, Pinus caribaea var. hondurensis AND Pinus oocarpa FOR PENCIL PRODUCTION

Quality of the wood Swietenia macrophylla from planting in the Central Amazon

Physical, chemical and mechanical characterization of Acrocarpus fraxinifolius cultivated in Sao Paulo

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