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The properties of fly ash based geopolymer mortars made with dune sand

Chuah, S., Duan, W. H., Pan, Z., Hunter, E., Korayem, A. H., Zhao, X. L., Collins, F. and Sanjayan, J. G. 2016, The properties of fly ash based geopolymer mortars made with dune sand, Materials and design, vol. 92, pp. 571-578, doi: 10.1016/j.matdes.2015.12.070.

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Title The properties of fly ash based geopolymer mortars made with dune sand
Author(s) Chuah, S.
Duan, W. H.
Pan, Z.
Hunter, E.
Korayem, A. H.
Zhao, X. L.
Collins, F.ORCID iD for Collins, F. orcid.org/0000-0001-6331-5390
Sanjayan, J. G.
Journal name Materials and design
Volume number 92
Start page 571
End page 578
Total pages 8
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-02-15
ISSN 0264-1275
1873-4197
Keyword(s) Science & Technology
Technology
Materials Science, Multidisciplinary
Materials Science
Microstructure
Compressive strength
Elastic moduli
Aggregate
Alkali activated cement
ALKALI-ACTIVATED CEMENTS
CHEMICAL INTERACTIONS
CONCRETE
PASTE
PERMEABILITY
WORKABILITY
TEMPERATURE
Summary This paper reports the properties of fly ash based geopolymer mortars made with dune sand. The geopolymer mortars of different cation type, namely sodium based (Na), potassium based (K) and a mixed Na/K, were prepared with dune sand (DS) and river sand (RS). The corresponding geopolymer pastes were also prepared. A series of tests including compressive strength, modulus of elasticity, splitting tensile strength, microanalysis (using scanning electron microscopy), porosity (using mercury intrusion porosimetry), sorptivity and air void (using section analysis method) were carried out. The results showed a strong correlation between strength and porosity of geopolymeric materials. The addition of DS had influences on the chemical compositions and physical properties of geopolymer mortars. These influences were dependent on the type of cation. Based on the results of mechanical properties, DS can be utilised as the fine aggregate for the production of geopolymer based construction material.
Language eng
DOI 10.1016/j.matdes.2015.12.070
Field of Research 090503 Construction Materials
0912 Materials Engineering
0913 Mechanical Engineering
Socio Economic Objective 870301 Cement and Concrete Materials
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier Ltd.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30081218

Document type: Journal Article
Collection: Institute for Frontier Materials
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