Characterization of cotton fabric reinforced geopolymer composites modified with Portland cement

Fly-ash based geopolymer composites reinforced with cotton fabric (CF) and containing Ordinary Portland cement (OPC) have been fabricated and investigated in terms of x-ray diffraction, scanning electron microscopy and mechanical properties. Results indicated that the mechanical properties of geopol...

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Main Authors: Shaikh, Faiz, Alomayri, T., Low, I.
Format: Conference Paper
Published: 2014
Online Access:http://hdl.handle.net/20.500.11937/36647
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author Shaikh, Faiz
Alomayri, T.
Low, I.
author_facet Shaikh, Faiz
Alomayri, T.
Low, I.
author_sort Shaikh, Faiz
building Curtin Institutional Repository
collection Online Access
description Fly-ash based geopolymer composites reinforced with cotton fabric (CF) and containing Ordinary Portland cement (OPC) have been fabricated and investigated in terms of x-ray diffraction, scanning electron microscopy and mechanical properties. Results indicated that the mechanical properties of geopolymers generally increased as a result of OPC addition. The addition of OPC also enhanced the fibre-matrix adhesion and led to geopolymer composites with improved strength because of the formation of calcium silicate hydrate (C-S-H) gel which filled the voids and pores within the matrix. However, SEM images of fracture surfaces revealed that OPC addition hindered the toughening mechanism by limiting the prevalence of fibre pull out. As the OPC content increases, the density of geopolymer composites increases by virtue of a reduction in porosity via the formation of C-S-H gels.
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spelling curtin-20.500.11937-366472017-09-13T15:28:25Z Characterization of cotton fabric reinforced geopolymer composites modified with Portland cement Shaikh, Faiz Alomayri, T. Low, I. Fly-ash based geopolymer composites reinforced with cotton fabric (CF) and containing Ordinary Portland cement (OPC) have been fabricated and investigated in terms of x-ray diffraction, scanning electron microscopy and mechanical properties. Results indicated that the mechanical properties of geopolymers generally increased as a result of OPC addition. The addition of OPC also enhanced the fibre-matrix adhesion and led to geopolymer composites with improved strength because of the formation of calcium silicate hydrate (C-S-H) gel which filled the voids and pores within the matrix. However, SEM images of fracture surfaces revealed that OPC addition hindered the toughening mechanism by limiting the prevalence of fibre pull out. As the OPC content increases, the density of geopolymer composites increases by virtue of a reduction in porosity via the formation of C-S-H gels. 2014 Conference Paper http://hdl.handle.net/20.500.11937/36647 10.1002/9781118889770.ch15 restricted
spellingShingle Shaikh, Faiz
Alomayri, T.
Low, I.
Characterization of cotton fabric reinforced geopolymer composites modified with Portland cement
title Characterization of cotton fabric reinforced geopolymer composites modified with Portland cement
title_full Characterization of cotton fabric reinforced geopolymer composites modified with Portland cement
title_fullStr Characterization of cotton fabric reinforced geopolymer composites modified with Portland cement
title_full_unstemmed Characterization of cotton fabric reinforced geopolymer composites modified with Portland cement
title_short Characterization of cotton fabric reinforced geopolymer composites modified with Portland cement
title_sort characterization of cotton fabric reinforced geopolymer composites modified with portland cement
url http://hdl.handle.net/20.500.11937/36647