Ladle slag (LS) and urban incineration bottom ash (BA) are two wastes which are necessarily disposed of with few attention for re-use or recycling. Their chemical composition contains silica and alumina accompanied by lime and iron oxides. Mineralogically speaking a number of silicate and silicoaluminate phases are present combined with 20-30 vol% of amorphous matrix. The presence of an important amount of vitreous phase makes LS and BA particularly reactive in alkali media. The geopolymerisation process of 70 wt% of LS or of BA in a metakaolin matrix has been characterized in terms of morphology and crystalline phases evolution.

Cristina Leonelli, Isabella Lancellotti, Chiara Ponzoni, Luisa Barbieri, Maria Chiara BIgnozzi (2013). Alkali activation for geopolymers preparation. Leuven : ACCO.

Alkali activation for geopolymers preparation

BIGNOZZI, MARIA
2013

Abstract

Ladle slag (LS) and urban incineration bottom ash (BA) are two wastes which are necessarily disposed of with few attention for re-use or recycling. Their chemical composition contains silica and alumina accompanied by lime and iron oxides. Mineralogically speaking a number of silicate and silicoaluminate phases are present combined with 20-30 vol% of amorphous matrix. The presence of an important amount of vitreous phase makes LS and BA particularly reactive in alkali media. The geopolymerisation process of 70 wt% of LS or of BA in a metakaolin matrix has been characterized in terms of morphology and crystalline phases evolution.
2013
Proceeding of the Third International Slag Valorization Symposium “The transition to sustainable materials management”
269
277
Cristina Leonelli, Isabella Lancellotti, Chiara Ponzoni, Luisa Barbieri, Maria Chiara BIgnozzi (2013). Alkali activation for geopolymers preparation. Leuven : ACCO.
Cristina Leonelli; Isabella Lancellotti; Chiara Ponzoni; Luisa Barbieri; Maria Chiara BIgnozzi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/155080
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