• Corpus ID: 135416179

The role of earlywood and latewood properties on dimensional stability of loblolly pine

  title={The role of earlywood and latewood properties on dimensional stability of loblolly pine},
  author={David E. Kretschmann and Steven M. Cramer},
The role of tree ring location and height within tree has a very significant impact on the properties of earlywood and latewood. This paper explores the role of earlywood and latewood properties on the dimensional stability of loblolly pine. Test results from isolated 1 mm by 1 mm by 30 mm pieces of earlywood and latewood show the differences in earlywood and latewood make different contributions to the stability of timber. Latewood is more sensitive to changes in moisture and shrinks… 
Variations in the natural density of European oak wood affect thermal degradation during thermal modification
Key messageThermogravimetric analysis, performed on small samples of earlywood (EW) or latewood (LW), indicated that earlywood is more susceptible to thermal degradation than latewood. These results
Compressive strength parallel to grain of earlywood and latewood of yellow pine
The compressive strength parallel to grain of earlywood and latewood from the yellow pine sapwood and heartwood areas was examined in the study. The structure of the basic anatomical elements of wood
Methods for the very early selection of Pinus radiata D. Don. for solid wood products
Abstract• IntroductionThere has been an increasing interest in very early selection of radiata pine to reduce the breeding cycle for solid wood products. For such selection, new approaches are
The effect of galactan content on the mechano-sorptive strain in loblolly pine
Abstract Mechano-sorptive (MS) strains were measured in torsion on eight loblolly pine specimens as a function of galactan content. The strains were generated by an increase of environmental humidity
FTIR spectroscopy of early and latewood of Larix gmelinii growing along the polar treeline: the correlation between absorption bands and climatic factors
ABSTRACT This paper presents the results of FTIR spectroscopy of the 1988–1998 annual ring early and latewood of Larix gmelinii (Rupr.) Rupr.) found along the polar treeline (Taimyr Peninsula,
Full-field moisture induced deformation in Norway spruce: intra-ring variation of transverse swelling
The transverse hygro-expansion of Norway spruce wood is studied on the growth ring level using digital image correlation. This non-destructive technique offers the possibility for a contactless study
Radial and axial variation in ring width of Caribbean pine ( Pinus caribaea Morelet) in Afaka Plantation, Kaduna State, Nigeria
This paper examines the within tree variation (radial and axial) in Ring Width of Caribbean Pine ( Pinus caribaea Morelet) Plantation Grown in Afaka plantation, Kaduna State, Nigeria. Samples of wood
Whole timber construction: A state of the art review
The profile of dimensional stability of Roseodendron donnell-smithii (Primavera) and Tabebuia rosea (Rosa morada) woods was determined by the experimental research of its major dimensional movement


Earlywood and latewood elastic properties in loblolly pine
Abstract The elastic properties of earlywood and latewood and their variability were measured in 388 specimens from six loblolly pine trees in a commercial plantation. Properties measured included
Transitional variation and relationships among properties within loblolly pine growth rings
  • E. Biblis
  • Materials Science
    Wood Science and Technology
  • 2004
SummaryLoblolly pine microtome sections 100μm thick were tested wet in tension. This thickness was approximately double the outside diameter of tracheids. Results indicate a curvilinear relationship
Mechanical Properties Of Individual Southern Pine Fibers. Part II. Comparison Of Earlywood And Latewood Fibers With Respect To Tree Height And Juvenility
This paper reports variations in mechanical properties of individual southern pine fibers and compares engineering properties of earlywood and latewood tracheids with respect to tree height and
Longitudinal shrinkage in fast-grown loblolly pine plantation wood
This paper provides basic information about loblolly pine longitudinal shrinkage (LS) characteristics, age-LS profiles, and relationships between LS and anatomical properties.
Mechanical and Anatomical Properties in Individual Growth Rings of Plantation-Grown Eastern Cottonwood and Loblolly Pine
Growth in genetically improved trees under intensive management is so rapid that rotations may be as short as 20 to 30 years. At that age, the trees contain a high proportion of lower quality
Juvenile/Mature Wood Transition in Loblolly Pine as Defined by Annual Ring Specific Gravity, Proportion of Latewood, and Microfibril Angle
The length of juvenility or number of years a tree produces juvenile wood at a fixed height can be defined by the age of the wood at which properties change from juvenile to mature wood. This paper
Mechanical properties of individual southern pine fibers. Part I. Determination and variability of stress-strain curves with respect to tree height and juvenility
This paper is the first in a three-part series investigating the mechanical properties of loblolly pine fibers. This paper outlines the experimental method and subsequent variation of latewood fiber
The influence of microfibril angle on the longitudinal shrinkage-moisture content relationship
  • B. Meylan
  • Materials Science
    Wood Science and Technology
  • 2004
SummaryIncremental longitudinal shrinkage has been measured on 44 samples of Pinus radiata at each 5% increment of moisture content from 0 to 25%. The samples range in mean microfibril angle from 10°
Mechanical properties of individual southern pine fibers. Part III. Global relationships between fiber properties and fiber location within an individual tree.
This is the third and final paper in a three-part series investigating the effect of location within a tree on the mechanical properties of individual wood tracheids. This paper focuses on the
Variation in Loblolly pine cross-sectional microfibril angle with tree height and physiographic region
CSMFA was found to be significantly larger in the north Atlantic and Piedmont regions compared to the south Atlantic, Gulf, and Hilly regions at all heights and the analysis of variance indicated that significant variation exists among trees within stands and across stands within regions.