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Advances in Materials Research
  Volume 3, Number 3, October 2014, pages 151-161
DOI: http://dx.doi.org/10.12989/amr.2014.3.3.151
 

Synthesis and mechanical properties of flax fabric reinforced geopolymer composites
Hasan S. Assaedi, Thamer S. Alomayri, Faiz U.A. Shaikh and It-Meng Low

 
Abstract
    Geopolymer composites reinforced with different layers of woven flax fabric are fabricated using lay- up technique. Mechanical properties, such as flexural strength, flexural modulus and fracture toughness of geopolymer composites reinforced with 2.4, 3 and 4.1 wt% flax fibres are studied. The fracture surfaces of the composites are also examined using scanning electron microscopy. The results show that all the mechanical properties of the composites are improved by increasing the flax fibre contents. It is also found that the mechanical properties of flax fabric reinforced geopolymer composites are superior to pure geopolymer matrix. Micro-structural analysis of fracture surface of the composites indicated evidence of various toughening mechanisms by flax fabrics in the composites.
 
Key Words
    geopolymer composite; flax fibre; mechanical properties
 
Address
Hasan S. Assaedi, Thamer S. Alomayri and It-Meng Low: Department of Imaging & Applied Physics, Curtin University, GPO Box U1987, Perth, WA 6845, Australia

Thamer S. Alomayri: Department of Physics, Umm Al-Qura University, Makkah 21955, Saudi Arabia.

Faiz U.A. Shaikh: Department of Civil Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
 

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