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    Volume 44, Issue 4 (July 2016)

    Measurement of Some Strength Properties and the Chemical Compositions of Seven Hardwood Species Grown in Northwest Egypt

    (Received 23 December 2014; accepted 24 June 2015)

    Published Online: 12 July 2016

    CODEN: JTEVAB

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    Abstract

    The present study evaluated for the first time, some strength properties and the chemical compositions of seven hardwood species grown in Northeast Egypt, namely, Acacia saligna, Delonix regia, Erythrina humeana, Ficus elastica, Leucaena leucocephala, Melia azedarach, and Meryta sinclairii. The analysis of variance (ANOVA) results indicated that the effect of wood species on the mechanical properties and chemical compositions was significant (P < 0.01). The parameters used to describe the mechanical properties and chemical compositions of the wood of the seven species differed from one species to another. The cellulose contents of the studied species, except for L. leucocephala (43.2 %), M. azedarach (44.1 %), and M. sinclairii (44.0 %), were found to be lower than those of common hardwood species. The variations in MOR, MOE, Cmax, and tensile strength among the seven species were expected given the differences in wood density and chemical compositions. Except for E. humeana, the other hardwood species studied could be considered to have moderate hardness and are suitable for making floor parquets. Overall, based on the studied mechanical properties, the wood of M. azedarach and M. sinclairii showed good MOR, MOE, and Cmax values, whereas E. humeana wood had the lowest such values. In terms of mechanical properties, the seven hardwood species studied in the present investigation can thus be concluded to have the following order: M. azedarach > M. sinclairii > L. leucocephala > D. regia > F. elastica > A. saligna > E. humeana.


    Author Information:

    Nasser, Ramadan A.
    Plant Production Dept., Food and Agriculture Sciences College, King Saud Univ., Riyadh,

    Forestry and Wood Technology Dept., Faculty of Agriculture (El-Shatby), Alexandria Univ.,

    Salem, Mohamed Z. M.
    Forestry and Wood Technology Dept., Faculty of Agriculture (El-Shatby), Alexandria Univ.,

    Al-Mefarrej, Hamad A.
    Plant Production Dept., Food and Agriculture Sciences College, King Saud Univ., Riyadh,

    Aref, Ibrahim M.
    Plant Production Dept., Food and Agriculture Sciences College, King Saud Univ., Riyadh,


    Stock #: JTE20140532

    ISSN:0090-3973

    DOI: 10.1520/JTE20140532

    Author
    Title Measurement of Some Strength Properties and the Chemical Compositions of Seven Hardwood Species Grown in Northwest Egypt
    Symposium ,
    Committee D07