Effect of Seed Source on Physical Properties of Scots Pine (a Case Study in Neka, Iran)

Farsi, Mohammad; Kiaei, Majid; Miar, Shahram; Kiasari, Shirzad Mohammadnezhad

doi:10.5552/drind.2013.1239

Cited by 5 publications

(4 citation statements)

References 20 publications

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“…Cronartium pini was shown to affect wood shrinkage, which was lower for infected wood than for healthy wood, with the latter exhibiting values similar to average pine wood shrinkage [17,19,21,49]. According to Tomczak and Jelonek [21], wood shrinkage does not depend on the height on the stem, and so the values determined for healthy wood in our study are consistent with the reports of other authors who examined the basal part of the trunk.…”

Section: Discussionsupporting

confidence: 90%

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The Structural, Physical, and Mechanical Properties of Wood from Scots Pine (Pinus sylvestris L.) Affected by Scots Pine Blister Rust

Kulak,

Lachowicz,

Moskalik

et al. 2023

Forests

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The objective of this work was to examine the effects of Scots pine blister rust on the quality of Scots pine wood. The research material was taken from tree parts with visible symptoms of fungal infection as well as from unaffected tree parts. Our results show that the effects of the fungus Cronartium pini (Willd.) Jørst. are local and do not prevent the use of wood, and especially its unaffected fragments. Statistical analysis was used to describe the ways in which the pathogen altered wood. While the fungus statistically increased wood density, it significantly diminished its strength parameters. The structural properties of infected and healthy wood from affected trees were found to be similar and much higher than the average values for Scots pine. The higher transverse parameters of wood fibers had a beneficial effect on morphological properties. Scots pine blister rust significantly decreased wood homogeneity, which, together with stem deformation, lowered the quality of timber and reduced its yield.

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Section: Discussionsupporting

confidence: 90%

“…These criteria are met by the Scots pine, which is one the most important tree species in the world. It has been primarily studied in terms of its structure [12,13] and physical properties [14][15][16][17][18][19][20][21] (and especially density [13,[22][23][24][25][26][27][28]) as well as mechanical properties [29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

The Structural, Physical, and Mechanical Properties of Wood from Scots Pine (Pinus sylvestris L.) Affected by Scots Pine Blister Rust

Kulak,

Lachowicz,

Moskalik

et al. 2023

Forests

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“…In Fig. 2, Scots pine has an average volumetric swelling of 14.5%, which is similar to the reported data (Ahmed and Morén 2012;Farsi et al 2013), and differences can be accepted as due natural variability. Solvent control (pyridine+acetone) samples have an average swelling of 16%, which is more than the reference samples due to the leaching of some extractives.…”

Section: Dimensional Stabilitysupporting

confidence: 89%

A natural flavonoid, chrysin, improving wood properties via impregnation

Ermeydan

2019

BioRes

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A broader utilization of wood can be achieved by eliminating its drawbacks such as low dimensional stability with changing moisture content and low durability against various bio-organisms. Heartwood formation is nature’s solution that functions through biosynthesis and accumulation of some phenolic compounds in the cell walls, leading to more durable and stable wood. In this study, a natural flavonoid molecule, chrysin, was used to improve Scots pine wood properties. Hydrophobic chrysin was impregnated into wood after a pre-treatment. The chrysin modification reduced the water uptake of the wood cell walls by up to 33% and increased the dimensional stability of the Scots pine by up to 30%. Infrared spectroscopic analysis revealed the chemical characterization of the bio-inspired modification. In contrast to the many modification methods that establish covalent bonds between hydroxyl groups of wood polymers, chrysin was bulked into wood cell walls and stabilized by intermolecular interactions.

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“…Materials that are valued in the wood industry and other sectors are those that are highly versatile, widely available, and of high technical quality. These prerequisites are met by beech and pine wood, which have been extensively tested for their structural characteristics [12,13], physical properties [1,2,[14][15][16][17][18][19] (and especially density [3,13,[20][21][22][23][24][25]), and mechanical parameters [4][5][6]26,27].…”

Section: Introductionmentioning

confidence: 99%

Physico-Mechanical and Energy Properties of Pine (Pinus sylvestris) and Beech (Fagus sylvatica) Wood from Railroad Ties

Aniszewska,

Gendek,

Tamelová

et al. 2024

Forests

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The objective of the present work was to determine the physico-mechanical and energy properties of pine (Pinus sylvestris) and beech (Fagus sylvatica) wood from railroad ties. The ties were divided into internal and external parts as well as into parts impregnated and unimpregnated with creosote oil. The effects of creosote impregnation on wood hardness, compressive strength parallel to the grain, static bending strength, and calorific value were studied. The obtained results show that the parameters of the analyzed samples meet the standard requirements (EN 338) for construction wood (compressive and bending strength class: C50—pine; D70—beech). Depending on the particular property being studied, both pine and beech samples belong to the highest or one of the highest wood quality classes. Creosote oil considerably increased wood density (by 9% for beech and 19% for pine) but did not affect its hardness. Creosote impregnation significantly improved the compressive strength parallel to the grain of both wood species (beech: σc=51.99 MPa (IN); σc=57.78 MPa (OUT); pine: σc=36.56 MPa (IN); σc=42.45 MPa (OUT)); in the case of static bending strength, its value was increased for beech wood (σg=106.13 MPa (IN); σg=113.18 MPa (OUT)) and reduced for pine wood (σg=66.34 MPa (IN); σg=82.62 MPa (OUT)). The oil contained in wood from ties significantly elevated its calorific value (by 25% for beech and 10% for pine). Unfortunately, the presence of creosote oil currently prevents wood from railroad ties from being reused as the oil is deemed hazardous and carcinogenic. However, if it were possible to isolate the unimpregnated parts of railroad ties, they could be reapplied for construction or other uses.

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Effect of Seed Source on Physical Properties of Scots Pine (a Case Study in Neka, Iran)

Cited by 5 publications

References 20 publications

The Structural, Physical, and Mechanical Properties of Wood from Scots Pine (Pinus sylvestris L.) Affected by Scots Pine Blister Rust

The Structural, Physical, and Mechanical Properties of Wood from Scots Pine (Pinus sylvestris L.) Affected by Scots Pine Blister Rust

A natural flavonoid, chrysin, improving wood properties via impregnation

Physico-Mechanical and Energy Properties of Pine (Pinus sylvestris) and Beech (Fagus sylvatica) Wood from Railroad Ties

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