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Change of mechanical properties of Norway Spruce wood due to degradation caused by fire retardants

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F10%3A00160677" target="_blank" >RIV/62156489:43410/10:00160677 - isvavai.cz</a>

  • Alternative codes found

    RIV/68378297:_____/10:00348291

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Change of mechanical properties of Norway Spruce wood due to degradation caused by fire retardants

  • Original language description

    The degradation of surface layers of wood can be caused by chemical reactions of compounds contained in fire retardants which were applied to historic wooden structures in the past. Among such chemicals are e.g. ammonium sulphate and ammonium phosphate.The paper presents the experimentally established mechanical properties measured on the surface of fibrillated wood of Norway Spruce (Picea abies (L.) Karst.), and their comparison with values measured on undamaged wood. The results proved a loss of cohesion in the damaged surface layer accompanied with a decrease in tensile strength by up to 50% when compared to the values ascertained in undamaged wood. The impact of corrosion was also studied using hardness tests based on ball and pin indentation. Electron microscopy investigation revealed both the damage to the middle lamella, which mainly consists of lignin, and the damage to the secondary cell wall primarily formed by cellulose. The increasing degree of fibrillation is accompanied

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    JN - Civil engineering

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2010

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Wood research

  • ISSN

    1336-4561

  • e-ISSN

  • Volume of the periodical

    55

  • Issue of the periodical within the volume

    IV

  • Country of publishing house

    SK - SLOVAKIA

  • Number of pages

    16

  • Pages from-to

  • UT code for WoS article

  • EID of the result in the Scopus database