Synthesis of fly ash-calcined clay geopolymers: Reactivity, mechanicalstrength, structural and microstructural characteristics
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
View Archive Info| Field | Value | |
| Title |
Synthesis of fly ash-calcined clay geopolymers: Reactivity, mechanicalstrength, structural and microstructural characteristics
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| Creator |
Ogundiran, Mary B.
Kumar, Sanjay |
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| Subject |
Mechanical Engineering
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| Description |
The roles of addition of calcined clay (CC) to fly ash and fly ash to CC, on the reactivity, compressive
strength, structural and microstructural properties of geopolymers were investigated. Fly ash-CC-based
geopolymers containing 0, 25, 50 and 75% fly ash were synthesised using Na2SiO3/NaOH as an activator.
X-ray Florescence, XRD, FTIR, ICC and SEM/EDX were applied to characterise source materials, study
geopolymerisation processes and geopolymer properties. Calcined clay accelerated dissolution/hydrolysis
of fly ash, while fly ash controlled the exothermic reaction that accompanied alkaline dissolution/
hydrolysis of CC. The combined roles led to the production of geopolymer with improved properties
and compressive strength of 36.7 MPa at 28 days.
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| Publisher |
Elsevier
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| Date |
2016
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://eprints.nmlindia.org/7527/1/Kumar%2CSanjay.pdf
Ogundiran, Mary B. and Kumar, Sanjay (2016) Synthesis of fly ash-calcined clay geopolymers: Reactivity, mechanicalstrength, structural and microstructural characteristics. Construction and Building Materials . pp. 450-457. |
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| Relation |
http://dx.doi.org/10.1016/j.conbuildmat.2016.08.076
http://eprints.nmlindia.org/7527/ |
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