Last edited by Dalrajas
Monday, May 4, 2020 | History

1 edition of fiber-saturation point of wood. found in the catalog.

fiber-saturation point of wood.

fiber-saturation point of wood.

  • 230 Want to read
  • 33 Currently reading

Published by Forest Products Laboratory, U.S. Forest Service in Madison, Wis .
Written in English

    Subjects:
  • Wood -- Moisture.

  • Edition Notes

    SeriesTechnical note -- no. 252., Technical note (Forest Products Laboratory (U.S.)) -- no. 252.
    ContributionsForest Products Laboratory (U.S.)
    The Physical Object
    Pagination[2] p. ;
    ID Numbers
    Open LibraryOL16126465M

    Below the fiber saturation point, when bound water begins to be lost from the structure, the wood will begin to move, showing dimensional changes. The process of losing free water from cut wood is called seasoning. In most woods the maximum bound water, or fiber saturation point, is about 30 percent, plus or minus a few percentage points. Wood Stabilization is a series of processes which use pressure and/or vacuum to impregnate wood cellular structure with certain monomers, acrylics, phenolics or other resins to improve dimensional stability and/or material exposed to moisture through humidity absorption or direct immersion, most wood species will expand and change shape.

    Free water on or in wood dries quickly but bound water within wood cells takes much longer to dry or requires kiln drying or other measures for its removal. [2] The fiber saturation point of wood or wood's FSP is defined as the moisture content of that wood when all of the free water has been removed. Water exists in green (unseasoned) wood in two conditions: as free water in the cell cavities and as bound water in the cell walls. When wood contains just enough water to saturate the cell walls, it is said to be at the fiber saturation point (FSP). Water in excess of this amount cannot be absorbed by the cell walls and, therefore, is free.

    Article Absolute Moisture Content Determination of Aspen Wood Below the Fiber Saturation Point using Pulsed NMR was published on 01 Jan in the journal Holzforschung (Vol Issue 6). much as percent of the weight of wood substance. After harvesting and milling, the wood will be dried to the proper moisture content for its end use. Wood fibers are dimensionally stable when the moisture content is above the fiber saturation point (usually about 30 percent moisture content). Below that, wood changes dimension when it gains.


Share this book
You might also like
Index to illustrations of the natural world

Index to illustrations of the natural world

Lope de Vega

Lope de Vega

Japan-U.S. trade relations

Japan-U.S. trade relations

Writing Smart

Writing Smart

Elizabethans

Elizabethans

Directory of railroad properties in the Colorado state register of historic properties.

Directory of railroad properties in the Colorado state register of historic properties.

Autumn token.

Autumn token.

Introduction to Fourier analysis and generalised functions.

Introduction to Fourier analysis and generalised functions.

glossary of Polish and English verb forms

glossary of Polish and English verb forms

Lectures in the sciencesof complexity

Lectures in the sciencesof complexity

Arkhangelsk System in the Ruy Lopez

Arkhangelsk System in the Ruy Lopez

Reliable vision-guided grasping

Reliable vision-guided grasping

Fiber-saturation point of wood Download PDF EPUB FB2

The shrinkage of wood starts at the fiber saturation point (nominally 30% moisture content), and is nearly linear to complete dryness. However, in the normal drying of lumber, the surface of the wood dries first.

When the surface dries below the fiber saturation point it. exists in cell cavities, is called the fiber saturation point. The fiber saturation point of wood averages about 30 percent moisture content. The fiber saturation point also is considered as that moisture content below which the physical and mechanical properties of wood begin to change as a function of lowering the moisture content.

The shrinkage of wood starts at the fiber saturation point (nominally 30% moisture content), and is nearly linear to complete dryness. However, in the normal drying of lumber, the surface of the wood dries first.

When the surface dries below the fiber saturation point it begins to shrink. As a piece of wood dries, it first loses its free water and dips below the FSP (fiber saturation point). This FSP corresponds to roughly 30% MC in most wood species.

(The FSP may be roughly ±3% MC depending on the wood species, but 30% MC is the commonly-accepted average.). Snapshot: The fiber saturation point is a key measure of how much water can be held within wood before free water forms in empty spaces within wood structure. Forest Service researchers developed a fiber-saturation point of wood.

book model to understand how bound and free water are partitioned within wood. This model can be used to develop more durable wood products. fiber saturation point is considered as that moisture content above which the physical and mechanical properties of wood do not change as a function of moisture content.

The fiber saturation point of wood averages about 30% moisture content, but in individual species and individual pieces of wood it can vary by several percentage points from thatCited by: Physical Properties and Moisture Relations of Wood William Simpson and Anton TenWolde Contents Appearance 3–1 Grain and Texture 3–1 Plainsawn and Quartersawn 3–2 Decorative Features 3–2 Moisture Content 3–5 Green Wood and Fiber Saturation Point 3–5 Equilibrium Moisture Content 3–5 Sorption Hysteresis 3–7 Shrinkage 3–7 File Size: KB.

The fiber saturation point of wood averages about 30 percent moisture content, but individual species and individual pieces of wood may vary by several percentage points from that value.

The fiber saturation point often is considered as that moisture content below which the physical and mechanical properties of wood begin to change as a.

I have five Irvington Moore brick steam kilns and my problem is this: In my smaller-capacity kilns (40, board feet), once I get below the fiber saturation point (FSP) or actually below 25 percent moisture content (MC), sometimes I get to a "freezing" point where the wood stops drying.

Moisture movement in coniferous wood below the fiber-saturation point (Technical bulletin / University of Minnesota, Agricultural Experiment Station) [Buckman, Stanley Joseph] on *FREE* shipping on qualifying offers.

Moisture movement in coniferous wood below the fiber-saturation point (Technical bulletin / University of MinnesotaAuthor: Stanley Joseph Buckman.

The correct answer to this question is D. Fiber saturation point is used to denote the point in the drying process in wood that only water in the cell walls will remain.

It is the minimum moisture content in equilibrium with a saturated atmosphere. It is the estimated point at which shrinkage begins. A wood pole with a diameter of 10 in. has a moisture content of 5%. The fiber saturation point (FSP) for this wood is 30%.

The wood shrinks or swells 1% (relative to the green dimensions) in the radial direction for every 5% change in moisture content below FSP. ELECTRICAL RESISTANCE OF WOOD WITH SPECIAL REFERENCE TO THE FIBER SATURATION POINT Paperback – January 1, by L.W.

Myer, J.E. & Rees (Author) See all formats and editions Hide other formats and editions. Price New from Used from Paperback, January 1, Author: L.W. Myer, J.E. & Rees. Finally, near the fiber-saturation point, a loss of bound water may take place in the presence of free water and thus affect significantly the strength of wood across its grain.

View Show abstract. Determination of fibre saturation point of selected tropical wood species using different methods 91 Materials and methods The wood species used in this study are summarized in table 1.

The basis of moisture content, how it is measured, and what makes timber shrink. Sections shown from my book, Heating with Wood. Book available from the Low Impact Living Initiantive, Centre for.

(Figure ). When moist wood dries, free water separates first and at a rate faster than bound water. The moisture content at which the cell walls are saturated with water, but at which virtually no free water exists in the cell cavities, is called the fiber saturation point.

The fiber saturation pointFile Size: KB. Moisture in softwoods: fiber saturation point, hydroxyl site content, and the amount of micropores as determined from NMR relaxation time distributions; Experimental and numerical analysis of the sound insulation property of wood plastic composites (WPCs) filled with precipitated CaCO3Cited by:   Wood.

PART 5. Timber. Seasoning of timber. Fiber saturation point. Kiln/natural/water seasoning Depreciation. Book value. SSC Je. Estimating & costing lecture - Duration. FIBER-SATURATION POINT AND SHRINKAGE As green wood dries, the cell cavities become empty first and when they are entirely empty the cell walls start to dry.

As long as there is any water in a cell cavity that cell will not shrink, but shrinkage does begin as. [2] The fiber saturation point of wood or wood's FSP is defined as the moisture content of that wood when all of the free water has been removed.

Picture the clothes in your clothes washer at the end of a spin cycle. The wet clothing has been squeezed until you couldn't get more water out of it - that clothing is at its fiber saturation point.DETERMINATION OF FIBER SATURATION POINT IN WHOLE WOOD USING DSC PROBLEM The fiber saturation point (FSP) of wood is defined as the maximum possible amount of water that the composite polymers of the cell wall can hold at a particular temperature and pressure.

Water in excess of the FSP occupies voids,File Size: KB.Electrical resistance of wood with special references to the fiber saturation point.

Syracuse, N.Y., University, (OCoLC) Document Type: Book: All .