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首页> 外文学位 >Evaluating lodgepole pine (Pinus contorta) affected by mountain pine beetle (Dendroctonus ponderosae) for development of wood-cement board.
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Evaluating lodgepole pine (Pinus contorta) affected by mountain pine beetle (Dendroctonus ponderosae) for development of wood-cement board.

机译：评估受山松甲虫（Dendroctonus tankerosae）影响的黑松（Pinus contorta），以开发木水泥板。

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摘要

Assessing the shelf life of wood from mountain pine beetle (Dendroctonus ponderosa [Hopkins]) killed lodgepole pine (Pinus contorta var. latifolia) in terms of its compatibility for Portland cement was examined. Two methods of assessment were used, based on the behavior of the exothermic chemical reaction of cement hydration, accounting for the difference between neat cement paste and wood-cement mixtures. A new wood-cement compatibility index meant to integrate current approaches was defined.; No evidence was found of limitations in terms of beetle-killed heartwood wood compatibility with cement; except for the white rot infested samples. An outstanding physicochemical behavior characterized the mixtures of blue-stained sapwood and cement.; Three compositions of ingredients were proposed for fabricating wood-cement boards that would meet the technical specifications given by the gypsum board standards with respect to strength and stiffness. In absence of pressing, the water was the factor used to regulate workability during the molding process.
机译：就其与波特兰水泥的相容性而言，评估了由山松甲虫（Dendroctonus藏果[Hopkins]）杀死的黑松（Pinus contorta var。latifolia）的木材的货架期。基于水泥水化的放热化学反应的行为，使用了两种评估方法，以说明水泥净浆与木水泥混合物之间的差异。定义了旨在整合当前方法的新的木水泥兼容性指数。没有证据表明甲虫杀死心材与水泥的相容性受到限制。除了白腐病样。优异的理化特性是蓝边材和水泥混合物的特征。提出了三种成分的成分来制造木板水泥板，这些木板在强度和刚度方面要符合石膏板标准给出的技术规格。在没有压制的情况下，水是在模塑过程中用来调节可加工性的因素。

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  • 作者

    Pasca, Sorin Andrei.;

  • 作者单位

    University of Northern British Columbia (Canada).;

  • 授予单位 University of Northern British Columbia (Canada).;
  • 学科 Agriculture Wood Technology.
  • 学位 M.Sc.
  • 年度 2007
  • 页码 229 p.
  • 总页数 229
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 森林采运与利用;
  • 关键词

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