Search for dissertations about: "heartwood"

Showing result 1 - 5 of 32 swedish dissertations containing the word heartwood.

  1. 1. Norway spruce heartwood properties related to outdoor use

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Karin Sandberg; SP Trä.; Luleå tekniska universitet.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood Technology; Träteknik; Forestry; agricultural sciences and landscape planning - Wood fibre and forest products; Skogs- och jordbruksvetenskap samt landskapsplanering - Träfiber- och virkeslära;

    Abstract : Nedbrytning av trä är ett komplext problem som beror på många parametrar, men speciellt inverkar fritt vatten, t.ex., från regn. Målet med arbetet var att studera hur olika parametrar påverkar vattenupptagning och uttorkning i gran (Picea abies (L. READ MORE

  2. 2. Constituents of pine heartwood : 26 : A general discussion

    University dissertation from Stockholm : Acta Chemica Scandinavica

    Author : Gösta Lindstedt; Stockholms högskola.; [1951]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  3. 3. Coated Norway Spruce Influence of Wood Characteristics on Water Sorption and Coating Durability

    University dissertation from Växjö : Linnaeus University Press

    Author : Tinh Sjökvist; Linnéuniversitetet.; [2019]
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Heartwood; Sapwood; Wood extractives; Moisture content; Paint; Alkyd; Acrylic; Linseed oil; Calcimine paint; Mould; Fungi; Algae; Weathering; Forestry and Wood Technology; Skog och träteknik;

    Abstract : Wood used outdoors is often degraded and discoloured by microorganisms as a natural part of its life cycle, particularly when exposed to high levels of moisture for prolonged times. In this case, the application of a coating (i.e. paint) is an option for increasing the service life of the wood. READ MORE

  4. 4. Moisture conditions in rain exposed wood joints - Experimental methods and laboratory measurements

    University dissertation from Division of Building Materials, LTH, Lund University

    Author : Maria Fredriksson; Lund University.; Lunds universitet.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wood; moisture; durability; service life; microclimate; surface moisture; mositure content; Norway spruce; Picea abies; pressure plate; decay; growth ring width; heartwood;

    Abstract : This thesis concerns the moisture conditions in rain exposed wood structures, i.e. wood exposed to high moisture levels. The focus was on the microclimate (the climate at the wood surface) and the material climate (the wood moisture content) in joints. READ MORE

  5. 5. Above Ground Durability of Swedish Softwood

    University dissertation from Växjö : Växjö University Press

    Author : Åsa Blom; Mikael Bergström; Växjö universitet.; [2005]
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; above ground; durability; field test; mass loss; Mycologg; Norway spruce; permeability; Picea abies; Pinus sylvestris; Scots pine; FORESTRY; AGRICULTURAL SCIENCES and LANDSCAPE PLANNING; SKOGS- och JORDBRUKSVETENSKAP samt LANDSKAPSPLANERING;

    Abstract : This thesis describes aspects of durability of Swedish softwood in above ground applications. The thesis consists of a summary of nine papers, which all aim to explain the existing variation in above ground microbial durability and moisture sensitivity of Norway spruce (Picea abies) and Scots pine (Pinus sylvestris). READ MORE