Characterisation of cotton fibre-reinforced geopolymer composites

This paper describes the physical, mechanical and fracture behaviour of fly-ash based geopolymer reinforced with cotton fibres (0.3–1.0wt%). Results show that the appropriate addition of cotton fibres can improve the mechanical properties of geopolymer composites. In particular, the flexural strengt...

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Bibliographic Details
Published in:Composites. Part B, Engineering Engineering, 2013-07, Vol.50, p.1-6
Main Authors: Alomayri, T., Shaikh, F.U.A., Low, I.M.
Format: Article
Language:English
Subjects:
A. Polymer–matrix composites (PMCs)
Agglomeration
Applied sciences
B. Fracture toughness
B. Mechanical properties
B. Microstructures
Composites
Cotton
Density
Exact sciences and technology
fiber content
Fibers
Fibres
Flexural strength
fly ash
Forms of application and semi-finished materials
Fracture mechanics
lint cotton
mechanical properties
Optimization
Polymer industry, paints, wood
porosity
Technology of polymers
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Summary:This paper describes the physical, mechanical and fracture behaviour of fly-ash based geopolymer reinforced with cotton fibres (0.3–1.0wt%). Results show that the appropriate addition of cotton fibres can improve the mechanical properties of geopolymer composites. In particular, the flexural strength and the fracture toughness increase at an optimum fibre content of 0.5wt%. However, as the fibre content increases, the density of geopolymer composites decreases due to an increase in porosity and tendency of fibre agglomeration.
ISSN:1359-8368
1879-1069
DOI:10.1016/j.compositesb.2013.01.013