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Effects of water and bleaching on the mechanical properties of cellulose fibre cements

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Abstract

The mechanical properties of bleached and unbleached cellulose fibre—cement composites are studied in both dry and wet conditionS. Bleaching the fibres increases both the elastic modulus and flexural strength but reduces the specific work of fracture. Water has a dramatic adverse effect on the elastic modulus and flexural strength of the composites irrespective of whether the fibres are bleached or not. However, water increases remarkably the fracture resistance. A failure mechanism is proposed to explain these experimental results and this is supported by evidence obtained from scanning electron micrographs of fracture surfaces.

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Authors and Affiliations

  1. Department of Mechanical Engineering, University of Sydney, 2006, Sydney, NSW, Australia

    Y. W. Mai, M. I. Hakeem & B. Cotterell

Authors
  1. Y. W. Mai
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  2. M. I. Hakeem
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  3. B. Cotterell
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Additional information

An earlier version of this paper was presented at the Eighth Australian Conference on the Mechanics of Structures and Materials, University of Newcastle, NSW, Australia, August 1982.

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Mai, Y.W., Hakeem, M.I. & Cotterell, B. Effects of water and bleaching on the mechanical properties of cellulose fibre cements. J Mater Sci 18, 2156–2162 (1983). https://doi.org/10.1007/BF00555010

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  • DOI: https://doi.org/10.1007/BF00555010

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