Characterization of Geopolymer Materials Containing MSWI Fly Ash and Coal Fly Ash

Salvatore Andini; Raffaele Cioffi; Francesco Colangelo; Claudio Ferone; Fabio Montagnaro; Luciano Santoro

doi:10.4028/www.scientific.net/AST.69.123

Paper Titles

Durability of Geopolymer Concretes upon Seawater Exposure
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Role of Alkaline Cations on Geomaterial Foams
p.97

Comparative Study of the Consolidation Process and Properties of Clay Based Geomaterials and “Geomimetic” Lateritic Clay Based Materials
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New Geopolymers Based on Electric Arc Furnace Slag
p.117

Characterization of Geopolymer Materials Containing MSWI Fly Ash and Coal Fly Ash
p.123

Formation of Tetra-Coordinated Aluminum in the Low Temperature Ashes
p.129

Medium to Long Term Engineering Properties and Performance of High-Strength Geopolymers for Structural Applications
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Bond Strengths of Geopolymer and Cement Concretes
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Use of Local Raw Materials for Construction Purposes
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 69Characterization of Geopolymer Materials...

Characterization of Geopolymer Materials Containing MSWI Fly Ash and Coal Fly Ash

Abstract:

In this work three samples of MSWI ash have been stabilized in systems containing coal fly ash and able to give geopolymers through a polycondensation reaction. Monolithic products were obtained with both MSWI ashes as received and after chloride partial removal by water washing. The polycondensation products have been characterized qualitatively by means of FT-IR spectroscopy and scanning electron microscopy (SEM) and quantitatively through the determination of the amount of reacted water and silicate. Differently from traditional cement based stabilization systems, those based on geopolymerization show a chemical behaviour almost insensitive to the presence of chlorides and sulphates in the MSWI ash. On the other hand, the microstructure is strongly affected by the content of soluble salts.

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Periodical:

Advances in Science and Technology (Volume 69)

Pages:

123-128

DOI:

https://doi.org/10.4028/www.scientific.net/AST.69.123

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Online since:

October 2010

Authors:

Salvatore Andini, Raffaele Cioffi, Francesco Colangelo, Claudio Ferone, Fabio Montagnaro, Luciano Santoro

Keywords:

Coal Fly Ash, Geopolymer, Municipal Solid Waste Incinerator Ash

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