Effect of trace elements of alternative fuels and raw materials on the structure and properties of Portland cement clinker

Abstract

This thesis presents the results of an in-depth investigation in regard to the suitability and effect of the chemical composition of wastes used as alternative fuels-AF on the structure and properties of Portlnad cement clinker based on a scenario of 100% thermal substitution of conventional fuels by AF. In this context clinkers were produced by firing mixtures of industrial raw mix with fuel ash in a laboratory furnace. Ash of a fuel mix consisting of coal-and pet-coke was introduced in the raw mix that served as the zero basis, while the other three mixtures were prepared with the addition of ashes originating from refuse derived fuel-RDF and agricultural biomass (rice husks and cotton stalks). The clinkering behavior of the mixtures was assessed by differential thermal analysis and scanning calorimetry. The microstructure of the resulting clinkers was investigated by x-ray diffraction and Rietveld method, as well as scanning electron and optical microscopy. The physical and mechanic ...
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DOI
10.12681/eadd/29523
Handle URL
http://hdl.handle.net/10442/hedi/29523
ND
29523
Alternative title
Επίδραση των ιχνοστοιχείων των εναλλακτικών καυσίμων και πρώτων υλών στη δομή και τις ιδιότητες του κλίνκερ τσιμέντου Πόρτλαντ
Author
Karagiannis, John (Father's name: Athanasios)
Date
2012
Degree Grantor
National Technical University of Athens (NTUA)
Committee members
Φτικός Χρήστος
Ρηγοπούλου - Κασελούρη Βασιλεία
Γεωργιάδης Ανδρέας
Τσίμας Σταμάτης
Μουτσάτσου Αγγελική
Τσιβίλης Σωτήρης
Κακάλη Γλυκερία
Discipline
Engineering and Technology
Chemical Engineering
Keywords
Trace elements; Alternative fuels; Clinker; Portland Cement; Biomass; Municipal solid wastes; Rice husk ash; Cement hydration
Country
Greece
Language
Greek
Description
viii, 148 σ., im., tbls., fig., ch.
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